Functional Neurological Symptoms / PNES
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Understanding Functional Neurological Symptoms and PNES
Some patients experience real neurological symptoms even when routine scans or tests do not show structural damage. These symptoms may include weakness, numbness, tremor, blackouts, seizure-like episodes, walking difficulty, speech difficulty, dizziness, abnormal movements, or extreme fatigue. FND & PNES Evaluation in Gurgaon may help when these symptoms remain unexplained or require careful neurological assessment.
Functional neurological disorder, or FND, refers to symptoms caused by a problem in nervous-system functioning rather than visible structural damage on routine tests. The symptoms are real. They are not fake, voluntary, or imagined.
PNES means psychogenic non-epileptic seizures. These are seizure-like episodes that are not caused by epileptic electrical discharges in the brain. They still require proper diagnosis, explanation, and treatment.
At JHN, we evaluate these symptoms carefully and respectfully. The goal is not to dismiss the patient. The goal is to understand the pattern, rule out important mimics, and guide the right treatment pathway.
Quick Check: Could This Be FND or PNES?
Patients may report:
- Seizure-like episodes
- Blackouts or unexplained spells
- Tremor or shaking episodes
- Tremor or shaking episodes
- Numbness or sensory symptoms
- Walking difficulty
- Imbalance
- Speech difficulty during episodes
- Sudden episodes triggered by stress, fatigue, pain, sleep loss, or emotional overload
- Symptoms that remain difficult to explain despite previous testing
- Conflicting opinions about epilepsy and non-epileptic events
- Events that continue despite seizure medication
Understanding FND and PNES
Functional Neurological Disorder
FND involves a disruption in how the brain and nervous system send, receive, or control signals, rather than visible structural damage on routine imaging.
Psychogenic Non-Epileptic Seizures
PNES episodes may resemble epileptic seizures but are not caused by epileptic electrical activity in the brain.
Real and Involuntary Symptoms
The symptoms are experienced by the patient and are not consciously produced or controlled.
Possible Coexisting Conditions
FND or PNES may occur alongside epilepsy, migraine, anxiety, depression, chronic pain, sleep disorders, or other medical conditions.
What Can Mimic FND or PNES?
Before labelling symptoms as functional, important neurological, cardiac, metabolic, sleep-related, and medical causes must be considered.
Epileptic Seizures
Epileptic seizures are caused by abnormal electrical activity in the brain and may require EEG or video EEG evaluation.
Syncope
Syncope means fainting caused by a temporary reduction in blood flow to the brain. It may occasionally include brief jerking movements.
Metabolic Problems
Low blood sugar, electrolyte disturbances, infection, dehydration, and other metabolic conditions can cause altered awareness or abnormal movements.
Cardiac Rhythm Problems
Abnormal heart rhythms can cause blackouts, fainting, weakness, or sudden loss of awareness.
Migraine Variants
Some migraine conditions may cause weakness, numbness, speech difficulty, dizziness, visual symptoms, or confusion.
Stroke or TIA
Sudden weakness, numbness, speech trouble, facial droop, or severe imbalance may indicate a stroke-related emergency.
Nerve and Movement Disorders
Neuropathy, radiculopathy, dystonia, tremor disorders, Parkinsonism, and other neurological conditions may produce similar symptoms.
Sleep-Related Events
Parasomnias, dream-enactment behavior, abnormal sleep movements, and other sleep events may resemble seizures.
Panic or Dissociative Episodes
Panic, hyperventilation, emotional overload, or dissociative episodes may cause shaking, altered awareness, dizziness, or collapse.
Medication or Substance Effects
Sedatives, alcohol, stimulants, medication interactions, withdrawal, or substance use may cause seizure-like or neurological symptoms.
What to Expect at Your First Visit
Your first visit focuses on listening carefully to the symptom story. We will ask what happens before, during, and after the episodes; whether there are triggers; whether symptoms vary; what previous tests showed; what medicines have been tried; and how the symptoms affect daily life.
Before the Episode
We review possible warning symptoms, stress, emotional overload, pain, sleep loss, fatigue, standing, fasting, medication changes, or other triggers.
During the Episode
We ask about awareness, movement pattern, shaking, weakness, speech, breathing, eye position, duration, responsiveness, and injury.
After the Episode
Recovery time, confusion, sleepiness, weakness, headache, emotional response, memory, and ability to resume normal activity are reviewed.
Witness and Video Review
If a family member witnessed the event, their description can be valuable. A safely recorded phone video may also help clarify the pattern.
Previous Test and Treatment Review
Previous MRI, CT, EEG, laboratory reports, prescriptions, seizure medicines, and other treatment records are reviewed when available.
Targeted Investigation Planning
EEG, video EEG, ECG, laboratory tests, NCV/EMG, sleep study, imaging, or specialist referral may be recommended depending on the clinical pattern.
When to Seek Medical Evaluation
You should seek evaluation if you have:
- Recurrent seizure-like episodes
- Blackouts or unexplained spells
- Weakness, numbness, tremor, or walking difficulty without a clear diagnosis
- Events continuing despite seizure medication
- Conflicting opinions about epilepsy and PNES
- Symptoms affecting work, school, relationships, or daily function
- Anxiety, trauma, stress, sleep disruption, or burnout alongside neurological symptoms
- Need for EEG or video EEG correlation
- Concern that previous explanations were unclear, incomplete, or dismissive
When to Seek Urgent Care
Seek urgent emergency care for:
- A first seizure-like event
- A seizure-like event lasting more than five minutes
- Repeated events without full recovery
- New or sudden weakness
- Facial droop
- Speech difficulty
- Severe or sudden headache
- Head injury
- Fever or neck stiffness
- Severe confusion
- Chest pain
- Fainting with injury
- Any immediate safety concern
How JHN Evaluates FND and PNES
Evaluation may include:
- Detailed symptom and event history
- Witness description
- Phone video review when available
- Neurological examination
- Review of previous MRI, CT, EEG, blood tests, prescriptions, and treatment records
- Screening for epileptic seizure features and non-epileptic event features
- Evaluation for fainting, sleep events, panic episodes, migraine, movement symptoms, and metabolic contributors
- EEG or video EEG when clinically appropriate
- ECG when syncope or cardiac concerns are possible
- Laboratory testing for metabolic contributors when needed
- NCV or EMG when neuropathy, radiculopathy, or nerve involvement is suspected
- Sleep study or PSG when sleep-related events or sleep apnea are suspected
- Referral to psychology, psychiatry, physiotherapy, or neurological rehabilitation when needed
Possible Tests and Referrals
Routine EEG
EEG records brain-wave activity and may help support seizure evaluation when interpreted with the event history.
Video EEG
Video EEG records physical behavior together with brain-wave activity, allowing a typical episode to be compared with the EEG recording.
ECG and Cardiac Review
ECG or cardiac assessment may be needed when fainting, palpitations, chest symptoms, or heart rhythm problems are possible.
Laboratory Testing
Blood sugar, electrolytes, infection markers, organ function, and other laboratory tests may help identify medical or metabolic causes.
NCV / EMG
Nerve and muscle testing may be advised when numbness, weakness, neuropathy, radiculopathy, or nerve injury is suspected.
Sleep Study / PSG
A sleep study may be considered when episodes occur during sleep or when sleep apnea and other sleep-related events are possible.
Imaging Referral
MRI or CT may be advised when the history, examination, first-event assessment, injury, or neurological warning signs indicate a need for imaging.
Psychology or Psychiatry Referral
Specialist support may help address stress, anxiety, trauma, depression, dissociation, and other factors that may contribute to symptoms.
Physiotherapy and Neuro-Rehabilitation
Rehabilitation may help retrain movement, walking, balance, strength, confidence, and functional independence.
Treatment Approach
Treatment depends on the confirmed diagnosis, symptom pattern, coexisting conditions, triggers, functional impact, and safety concerns.
- Clear explanation of the diagnosis and possible nervous-system mechanism
- Safety planning for seizure-like episodes, blackouts, falls, or weakness
- Avoiding unnecessary escalation of anti-seizure medicines when events are confirmed to be non-epileptic
- Treating coexisting epilepsy when both epilepsy and PNES are present
- Sleep correction and fatigue management
- Treatment of stress, anxiety, trauma, depression, or mood symptoms when relevant
- Psychology or psychiatry support
- Physiotherapy or neurological rehabilitation for movement, gait, tremor, or weakness symptoms
- Management of pain, migraine, sleep disorders, or other contributing medical conditions
- Follow-up to track episode frequency, triggers, daily function, treatment response, and safety
Safety Planning During Episodes
Prevent Injury
Move dangerous objects away and help the person remain in a safe position during an episode.
Do Not Restrain
Avoid forcefully holding the person down or trying to stop movements physically.
Do Not Put Objects in the Mouth
Do not place fingers, spoons, medicines, water, or other objects into the person’s mouth during an episode.
Observe and Time the Event
Note the duration, movements, awareness, breathing, possible triggers, and recovery pattern.
Record Safely When Possible
A phone video may be useful for medical evaluation, but safety should always come before recording.
Know When to Seek Emergency Care
Urgent help is needed for a first event, prolonged episode, repeated events without recovery, injury, breathing difficulty, or new neurological symptoms.
Living With More Than One Condition
Some patients with PNES or FND also have epilepsy, migraine, chronic pain, sleep disorders, anxiety, depression, neuropathy, or other medical conditions.
Ongoing care may involve coordination between neurology, sleep medicine, psychology, psychiatry, physiotherapy, rehabilitation, and general medical services depending on the patient’s needs.
Patient-Friendly Summary
Unexplained neurological symptoms should be understood, not dismissed. FND and PNES are real conditions that can cause weakness, tremor, blackouts, seizure-like episodes, walking difficulty, speech changes, and other disabling symptoms. FND & PNES Evaluation in Sector 56, Gurgaon can help with appropriate assessment and guidance.
Careful diagnosis helps rule out important mimics, prevents unnecessary treatment, and connects the patient with appropriate neurological, psychological, sleep, and rehabilitation support.
