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TRAUMATIC NEUROLOGY

Post-Concussion Syndrome in Hyderabad: Months of Headaches and Brain Fog After a Concussion You Were Told Would Resolve in Two Weeks — Why It Happens and How KIMS Treats It

Q: It has been 6 weeks since my concussion and I still have daily headaches and cannot concentrate at work. My doctor says the scan is normal. Am I going to be like this forever?

No — and the normal scan does not mean there is nothing wrong. Concussion and post-concussion syndrome are not visible on standard CT or MRI because the changes are at the cellular and neurochemical level, not at the structural level visible on imaging. What the normal scan tells you is that there is no bleeding or structural damage — which is reassuring. What it does not tell you is anything about why your symptoms are persisting. Six weeks is the threshold for post-concussion syndrome, and PCS is a recognised, treatable condition. The majority of PCS patients — with the right multidisciplinary treatment — recover fully, though this can take 3–6 months. At KIMS, the assessment identifies which specific components are driving your symptoms (vestibular, autonomic, cervicogenic, cognitive, mood) and a specific treatment programme is prescribed for each. You do not have to continue as you are. Please call 040-44885000.

Q: My teenage daughter had a concussion 2 months ago. She is back at school but struggling. Her school says she needs to perform normally. What can I do?

PCS in adolescents is a recognised medical condition that entitles your daughter to school accommodations under medical documentation. At KIMS, we provide formal letters for schools documenting the diagnosis, the specific cognitive impacts (reduced processing speed, concentration, fatigue), and recommended accommodations: extended time for exams, reduced homework load during recovery, permission to wear sunglasses in bright classrooms if light sensitivity is prominent, and breaks during the school day. Adolescent PCS takes longer to resolve than adult PCS — often 3–6 months — but it does resolve with appropriate management. The most important intervention at this stage is preventing overload: pushing a recovering brain beyond its current capacity does not accelerate recovery and can prolong it. Please call 040-44885000 for a formal PCS assessment and school accommodation letter.

Q: I have been told my post-concussion symptoms are anxiety and I should see a psychiatrist. Could it really be physical?

It is both — and the distinction many doctors draw between 'physical' and 'psychological' is unhelpful in PCS. The anxiety and mood symptoms in PCS are caused by the same neurobiological disruption that causes the headaches and cognitive fog: disruption of prefrontal and limbic circuits, neurotransmitter dysregulation, and the autonomic nervous system changes from the concussion. They are physically real. At the same time, the lived experience of weeks of unexplained illness, being doubted by doctors, losing work capacity, and being unable to participate in activities you enjoy produces genuine psychological distress that further worsens the biological symptoms in a reinforcing cycle. At KIMS, both the biological and psychological components are addressed simultaneously, not treated as competing explanations. Psychological support (CBT) alongside vestibular physiotherapy and graduated aerobic exercise — not instead of them — is the evidence-based approach. Please call 040-44885000.

Q: My husband with PCS has been told to start exercising. But every time he exercises, his symptoms get much worse. How is exercise supposed to help?

This apparent contradiction is resolved by understanding that it is not exercise in general that worsens PCS — it is exercise at a level that exceeds the physiological tolerance of the recovering autonomic nervous system. The Buffalo Concussion Treadmill Test at KIMS identifies your husband's specific symptom threshold — the heart rate at which symptoms worsen. The exercise prescription is then deliberately set 15–20 bpm below that threshold — an intensity that provides the cardiovascular and autonomic benefits of exercise without triggering the symptom response. This sub-symptom threshold exercise, done consistently 20–30 minutes per day, progressively raises the symptom threshold as the autonomic system recovers, allowing more intense exercise over weeks. It is not 'push through the pain' — it is 'exercise precisely below the threshold where your brain currently complains.' Please call 040-44885000 for a BCTT and exercise prescription.

Q: How long does post-concussion syndrome last?

The honest answer is that it varies. Most PCS patients improve significantly over 3–6 months with appropriate treatment. Some recover fully by 3 months; others take 6–12 months. A small proportion (approximately 5–10%) have symptoms persisting beyond 12 months — this prolonged PCS is more likely in patients with: multiple prior concussions; severe initial concussion; prominent vestibular dysfunction; pre-existing migraine or anxiety; delayed start of treatment; or return to activity too early. At KIMS, the earlier treatment begins, the faster and more complete the recovery. Waiting for symptoms to resolve on their own, while understandable, is not the optimal approach for PCS — untreated vestibular dysfunction does not improve through rest, and untreated autonomic dysregulation worsens with inactivity. Please do not wait. Call 040-44885000.

Vestibular physiotherapy, graded aerobic exercise (Buffalo Treadmill Test), cervical rehabilitation, cognitive rehabilitation, and mood support — coordinated as one programme at KIMS Neuroscience, Secunderabad, Hyderabad.

View Our Specialists

PCS is the persistence of concussion symptoms — headache, cognitive fog, dizziness, fatigue, sleep disturbance, mood changes, and light/noise sensitivity — beyond the expected recovery window of 2–4 weeks. It affects approximately 15–30% of concussion patients. PCS is not imagined, exaggerated, or a sign of weakness — it has five identifiable biological components: (1) persistent post-traumatic headache; (2) vestibular dysfunction (BPPV, vestibular hypofunction, visual vestibular mismatch); (3) autonomic dysregulation (exercise intolerance, orthostatic instability, identified and treated with the Buffalo Concussion Treadmill Test); (4) cognitive impairment; and (5) mood and psychological symptoms (neurobiologically mediated, not a conversion reaction). Treatment is specifically targeted to the active components in each patient. The BCTT identifies the exercise threshold and prescribes sub-symptom threshold aerobic exercise.

The 5 PCS components — each needs specific treatment: (1) Post-traumatic headache: migrainous (triptans + amitriptyline/topiramate/propranolol) or tension-type (amitriptyline + physio); NSAIDs avoided after 2–3 weeks. (2) Vestibular: VOMS, BPPV Epley, vestibular adaptation, optokinetic. (3) Autonomic: BCTT + sub-symptom aerobic exercise. (4) Cognitive: neuropsychological assessment + workplace accommodation letter. (5) Mood: low-dose amitriptyline (headache + sleep + anxiety).
Buffalo Concussion Treadmill Test — diagnostic AND therapeutic: BCTT identifies the exact heart rate at which PCS symptoms worsen. A threshold below 85% of predicted maximum HR confirms physiological autonomic dysfunction — objective proof that PCS is real. The exercise prescription: 15–20 bpm below the symptom threshold. Retested every 2–3 weeks as autonomic recovery progresses.
Sub-symptom threshold aerobic exercise — evidence-based: Counterintuitive but strongly evidence-based: exercising below the symptom threshold (not pushing through symptoms) progressively raises the threshold as the autonomic nervous system recovers. 20–30 minutes per day at prescribed heart rate. Most consistent improvement in autonomic PCS of any intervention.
The validation message — therapeutically powerful: At KIMS, every PCS patient is told at the first visit: "You are not making this up, you are not being dramatic, and there is nothing fundamentally wrong with your brain." Patients consistently report that being told their symptoms are real and have a cause is the single most therapeutic thing they hear.
Vestibular PCS — BPPV and VOMS: VOMS (Vestibular/Ocular Motor Screening) identifies: BPPV (Epley manoeuvre), vestibular hypofunction (adaptation exercises), and visual vestibular mismatch (optokinetic exercises for supermarket dizziness, screen sensitivity). Vestibular physiotherapy at KIMS by a concussion-trained physiotherapist.
NSAIDs — avoid after 2–3 weeks in PTH: Daily NSAID use for more than 2–3 weeks in post-traumatic headache patients produces medication overuse headache — harder to treat than the original PTH. Preventive medications (amitriptyline, topiramate, propranolol) are prescribed instead.
Adolescent PCS — school accommodation letters: PCS in adolescents takes longer to resolve (3–6 months). At KIMS, formal letters for schools document: extended exam time, reduced homework, permission for breaks, sunglasses for light sensitivity. Pushing a recovering adolescent brain beyond capacity does not accelerate recovery and can prolong it.

Fact	Details
Definition	Concussion symptoms persisting beyond 2–4 weeks · 15–30% of concussion patients · 5 identifiable biological components · Not imagined, not malingering, not weakness
5 components	Post-traumatic headache · Vestibular dysfunction (BPPV, hypofunction, visual mismatch) · Autonomic dysregulation (exercise intolerance) · Cognitive impairment · Mood / psychological
BCTT	Buffalo Concussion Treadmill Test · Identifies symptom-threshold heart rate · <85% max HR = confirms physiological autonomic dysfunction · Exercise prescribed 15–20 bpm below threshold · Retested every 2–3 weeks
Post-traumatic headache	Migrainous (amitriptyline + topiramate/propranolol + triptans) or tension-type (amitriptyline + physio) · NSAIDs avoided after 2–3 weeks (medication overuse headache risk)
Vestibular VOMS	BPPV: Epley manoeuvre · Hypofunction: adaptation exercises · Visual vestibular mismatch: optokinetic exercises · Vestibular physio by a concussion-trained physiotherapist
Validation message	Telling patients their symptoms are real and have a cause is itself therapeutic · The most important first action at KIMS PCS assessment
Prognosis	Most PCS: significant improvement in 3–6 months with treatment · 5–10% persist beyond 12 months · Risk factors for prolonged PCS: multiple prior concussions, prominent vestibular dysfunction, pre-existing migraine or anxiety, delayed treatment start

About This Condition

The Headache That Would Not Go

A 28-year-old software engineer in Hyderabad was in a minor car accident 3 months ago — a low-speed rear-end collision where her head snapped forward and back. She had no loss of consciousness and the CT head done at a nearby clinic was normal. She was told to rest for a week and expect full recovery.

Three months later, she is at KIMS because she has not recovered. She has a daily headache, worse in the afternoon and with screen work. She cannot concentrate on code for more than 20 minutes before her head pounds. She has stopped going to the gym because exercise makes the headache unbearable. She is dizzy when she moves her head quickly. She has been snapping at her family. She cannot sleep well despite being exhausted. Her manager is asking questions about her performance and she is terrified she is going to lose her job.

She has been to three other doctors. Two told her the CT was normal and she should be fine. One suggested anxiety was the cause. She is frustrated, frightened, and exhausted from being unwell and disbelieved simultaneously.

At KIMS, the assessment is systematic. Neuropsychological testing confirms objectively reduced processing speed and working memory compared to age norms. The VOMS (Vestibular/Ocular Motor Screening) identifies vestibular dysfunction: she scores abnormally on horizontal VOR and visual motion sensitivity. Cervical examination reveals restricted C1–C2 rotation and tenderness of the cervical paraspinal muscles consistent with a cervicogenic headache contribution. The Buffalo Concussion Treadmill Test: her symptoms worsen significantly when her heart rate exceeds 115 bpm — confirming autonomic dysfunction and exercise intolerance below the aerobic threshold.

The diagnosis is post-concussion syndrome with vestibular, cervicogenic, and autonomic components. A specific multidisciplinary treatment programme is started: vestibular physiotherapy (twice weekly for 6 weeks); cervical physiotherapy for the neck dysfunction; sub-symptom threshold aerobic exercise programme (starting at a heart rate 15 bpm below her symptom threshold, progressively increasing as tolerance improves); cognitive rehabilitation strategies for returning to sustained screen work; and melatonin 2 mg at night for sleep. At 8-week follow-up: headache frequency has reduced from daily to 3 days per week and is milder. She is back at the gym at 50% intensity. She is working 6 hours of focused screen time per day without significant headache.

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040-44885000Emergency line: 040-46324365

Key Facts

Quick Facts about Post-Concussion Syndrome

The essential context: what PCS is, what causes it, who is at risk, and the validation that every PCS patient deserves at the first visit.

What it is

Post-concussion syndrome (PCS) is a clinical syndrome defined by the persistence of concussion symptoms — headache, cognitive fog, dizziness, fatigue, sleep disturbance, mood changes, and sensitivity to light and noise — beyond the expected recovery window of 2–4 weeks after concussion. It affects approximately 15–30% of people following concussion. The symptoms are real, measurable on objective testing, and have identifiable biological underpinnings — they are not imagined, exaggerated, or signs of psychological weakness.

What causes it

PCS does not have a single cause — it is a constellation of interacting mechanisms: (1) Sustained neuroinflammation: the neurometabolic cascade of concussion triggers inflammatory processes that can outlast the initial neuronal disruption. (2) Vestibular dysfunction: the inner ear and oculomotor system are sensitive to concussive injury and can produce persistent dizziness, balance problems, and visual motion sensitivity. (3) Autonomic dysregulation: the autonomic nervous system (heart rate, blood pressure, exertion tolerance) is disrupted, producing exercise intolerance and orthostatic symptoms. (4) Cervicogenic component: the neck is often injured in the same impact that caused the concussion, and cervical muscle and joint dysfunction contributes to headache and dizziness. (5) Psychological factors: anxiety, depression, and post-traumatic stress responses are biologically real consequences of the injury and compound physical symptoms.

Who is at risk

PCS is more common in: women (1.5–2x higher rate than men after equivalent concussion severity); younger adolescents (age 11–18, where the developing brain may take longer to recover); patients with a history of previous concussions; patients with pre-existing anxiety, depression, or migraine; and patients who returned to physical or cognitive activity too early. These are not character traits — they are biological risk factors.

The validation message

One of the most important things KIMS tells every PCS patient at the first visit: you are not making this up, you are not being dramatic, and there is nothing fundamentally wrong with your brain. PCS is a recognised, diagnosable, and treatable condition. Most patients with PCS — with the right multidisciplinary treatment — recover fully, though this can take months. Understanding what is happening and why it is happening is itself therapeutic.

Treatment

The Five Components of PCS and Their Treatments

PCS is not one symptom — it is up to five interacting components, each with its own assessment and evidence-based treatment. Identifying the components active in each patient is the first step.

Persistent post-traumatic headache — the most common and most disabling symptom

Post-traumatic headache (PTH) is present in approximately 90% of PCS patients. Two main types: migrainous PTH (pulsating, unilateral, with nausea and light/noise sensitivity — responds to triptans and preventive migraine medications such as amitriptyline, topiramate, or propranolol); and tension-type PTH (bilateral, pressure-like, without nausea — responds to amitriptyline and physiotherapy for cervicogenic contribution). At KIMS, PTH is characterised and treated according to its phenotype. NSAIDs are avoided as long-term treatment (risk of medication overuse headache — a secondary headache from analgesic overuse that can develop within 2–3 weeks of daily NSAID use in PTH patients).

Vestibular dysfunction — dizziness, imbalance, visual motion sensitivity

Vestibular dysfunction in PCS is assessed with the VOMS at KIMS. Specific components identified: benign paroxysmal positional vertigo (BPPV — displaced otoconia in the semicircular canals producing brief, intense vertigo with position changes, treated with the Epley manoeuvre); vestibular hypofunction (reduced vestibular nerve sensitivity, treated with vestibular adaptation exercises); and visual vestibular mismatch (sensitivity to moving visual environments like scrolling screens, busy supermarkets, or moving traffic, treated with optokinetic exercises). Vestibular physiotherapy at KIMS, delivered by a physiotherapist trained in concussion vestibular rehabilitation, produces the most consistent improvements in PCS dizziness of any intervention.

Autonomic dysfunction and exercise intolerance

Dysregulation of the autonomic nervous system after concussion produces: exercise intolerance (symptoms worsening with heart rate elevation — identified by the Buffalo Concussion Treadmill Test); orthostatic intolerance (lightheadedness on standing, from impaired blood pressure regulation); and heart rate variability changes. The treatment: sub-symptom threshold aerobic exercise — exercising at a heart rate 15–20 bpm below the symptom threshold identified on the treadmill test, progressing gradually as the threshold rises. This graduated aerobic exercise approach — counterintuitive but strongly evidence-based — is the most effective treatment for autonomic PCS. At KIMS, the exercise threshold is determined and a specific programme is prescribed.

Cognitive impairment and the return-to-work challenge

Reduced processing speed, working memory, and sustained attention affect work performance, particularly in knowledge-work and screen-intensive occupations. Cognitive rehabilitation at KIMS addresses: identifying the optimal working conditions (quiet environments, 20-minute focused work blocks with breaks, reduced multitasking); cognitive fatigue management; and progressive return-to-work strategies. A formal neuropsychological assessment documents the cognitive profile for workplace accommodation letters and insurance purposes. Full cognitive recovery typically precedes return-to-sport clearance in athletes and should also precede return to high-stakes cognitive work (surgery, piloting, driving HGVs).

Mood and psychological symptoms — a neurobiological reality, not a weakness

Anxiety, depression, irritability, and emotional lability after concussion are biologically mediated — they reflect disruption of prefrontal-limbic circuits, neurotransmitter dysregulation, and the predictable psychological response to weeks of being unwell and disbelieved. They are not a sign of weakness or a conversion reaction. Treatment at KIMS: explanation and validation (powerful in itself — patients consistently report that being told their symptoms are real and have a cause is the single most therapeutic thing they hear); low-dose amitriptyline (10–25mg at night: treats PTH, improves sleep, and reduces anxiety simultaneously — an efficient triple benefit in PCS); and referral to a psychologist with experience in chronic post-injury conditions for CBT where anxiety or depression is prominent.

Objective Testing

The Buffalo Concussion Treadmill Test at KIMS

The BCTT is a standardised graded exercise test that identifies the heart rate at which PCS symptoms worsen — the symptom threshold. The test begins at low speed and increases incrementally until symptoms are provoked. The heart rate at symptom onset is the threshold.

Diagnosis — confirming PCS is real

A symptom threshold below 85% of predicted maximum heart rate confirms autonomic dysfunction and physiological concussion abnormality, providing objective evidence that PCS is real and not psychosomatic. The BCTT gives patients — and the doctors and employers asking for documentation — a measurable, reproducible test that PCS exists.

Treatment prescription — the precise exercise dose

The aerobic exercise programme is prescribed at a heart rate 15–20 bpm below the symptom threshold, and the threshold is retested every 2–3 weeks as fitness and autonomic recovery improve. When the symptom threshold normalises, return to full sport is initiated.

Related Conditions

Post-concussion syndrome belongs to the family of traumatic neurological conditions managed at KIMS:

Concussion & Mild TBI Traumatic Brain Injury Diffuse Axonal Injury Traumatic Encephalopathy

FAQs

Frequently Asked Questions

No — and the normal scan does not mean there is nothing wrong. Concussion and post-concussion syndrome are not visible on standard CT or MRI because the changes are at the cellular and neurochemical level, not at the structural level visible on imaging. What the normal scan tells you is that there is no bleeding or structural damage — which is reassuring. What it does not tell you is anything about why your symptoms are persisting. Six weeks is the threshold for post-concussion syndrome, and PCS is a recognised, treatable condition. The majority of PCS patients — with the right multidisciplinary treatment — recover fully, though this can take 3–6 months. At KIMS, the assessment identifies which specific components are driving your symptoms (vestibular, autonomic, cervicogenic, cognitive, mood) and a specific treatment programme is prescribed for each. You do not have to continue as you are. Please call 040-44885000.

PCS in adolescents is a recognised medical condition that entitles your daughter to school accommodations under medical documentation. At KIMS, we provide formal letters for schools documenting the diagnosis, the specific cognitive impacts (reduced processing speed, concentration, fatigue), and recommended accommodations: extended time for exams, reduced homework load during recovery, permission to wear sunglasses in bright classrooms if light sensitivity is prominent, and breaks during the school day. Adolescent PCS takes longer to resolve than adult PCS — often 3–6 months — but it does resolve with appropriate management. The most important intervention at this stage is preventing overload: pushing a recovering brain beyond its current capacity does not accelerate recovery and can prolong it. Please call 040-44885000 for a formal PCS assessment and school accommodation letter.

It is both — and the distinction many doctors draw between 'physical' and 'psychological' is unhelpful in PCS. The anxiety and mood symptoms in PCS are caused by the same neurobiological disruption that causes the headaches and cognitive fog: disruption of prefrontal and limbic circuits, neurotransmitter dysregulation, and the autonomic nervous system changes from the concussion. They are physically real. At the same time, the lived experience of weeks of unexplained illness, being doubted by doctors, losing work capacity, and being unable to participate in activities you enjoy produces genuine psychological distress that further worsens the biological symptoms in a reinforcing cycle. At KIMS, both the biological and psychological components are addressed simultaneously, not treated as competing explanations. Psychological support (CBT) alongside vestibular physiotherapy and graduated aerobic exercise — not instead of them — is the evidence-based approach. Please call 040-44885000.

This apparent contradiction is resolved by understanding that it is not exercise in general that worsens PCS — it is exercise at a level that exceeds the physiological tolerance of the recovering autonomic nervous system. The Buffalo Concussion Treadmill Test at KIMS identifies your husband's specific symptom threshold — the heart rate at which symptoms worsen. The exercise prescription is then deliberately set 15–20 bpm below that threshold — an intensity that provides the cardiovascular and autonomic benefits of exercise without triggering the symptom response. This sub-symptom threshold exercise, done consistently 20–30 minutes per day, progressively raises the symptom threshold as the autonomic system recovers, allowing more intense exercise over weeks. It is not 'push through the pain' — it is 'exercise precisely below the threshold where your brain currently complains.' Please call 040-44885000 for a BCTT and exercise prescription.

The honest answer is that it varies. Most PCS patients improve significantly over 3–6 months with appropriate treatment. Some recover fully by 3 months; others take 6–12 months. A small proportion (approximately 5–10%) have symptoms persisting beyond 12 months — this prolonged PCS is more likely in patients with: multiple prior concussions; severe initial concussion; prominent vestibular dysfunction; pre-existing migraine or anxiety; delayed start of treatment; or return to activity too early. At KIMS, the earlier treatment begins, the faster and more complete the recovery. Waiting for symptoms to resolve on their own, while understandable, is not the optimal approach for PCS — untreated vestibular dysfunction does not improve through rest, and untreated autonomic dysregulation worsens with inactivity. Please do not wait. Call 040-44885000.

Weeks of daily headaches after a concussion that 'should have healed.' Dizziness that makes reading painful. Work performance slipping. A normal scan and no answers.

Post-concussion syndrome is real, diagnosable, and treatable at KIMS Neuroscience, Secunderabad, Hyderabad. Vestibular physiotherapy, graded aerobic exercise prescription (Buffalo Treadmill Test), cervical rehabilitation, cognitive rehabilitation, and mood support — all coordinated as one programme. Call 040-44885000.

040-44885000

International enquiries: info@kimsneurosciences.com