Yes, you can have seizure-like episodes from anxiety, but they are not the same as epileptic seizures. These events are called psychogenic nonepileptic seizures (PNES). They look like seizures but are caused by psychological distress, not abnormal electrical activity in the brain. Understanding the difference is critical for getting the right treatment and avoiding unnecessary medications.
What Is the Difference Between an Anxiety Seizure and Epilepsy?
This is the most important distinction to make. An epileptic seizure happens because of sudden, uncontrolled electrical firing in the brain. It is a neurological condition. A PNES episode, sometimes called a psychogenic seizure, is a physical response to emotional or psychological stress.
Research published in the journal Epilepsy & Behavior found that PNES accounts for about 20 to 30 percent of cases seen at epilepsy monitoring units. That means many people who appear to have epilepsy actually have a condition rooted in anxiety, trauma, or other mental health factors. The two conditions can look nearly identical to an untrained observer, which is why misdiagnosis is common.
One key difference is that PNES episodes often occur in response to a specific emotional trigger. They may involve thrashing, crying, or shouting that appears purposeful. Epileptic seizures, by contrast, often follow a predictable pattern and may include a loss of awareness or a blank stare. A neurologist can use an EEG (electroencephalogram) to confirm whether abnormal brain activity is present.
Can Severe Anxiety Actually Trigger a Seizure?
Severe anxiety alone does not cause epilepsy. But it can trigger a PNES episode in someone who is already prone to it. The mechanism is not electrical. It is psychological. The brain essentially converts overwhelming emotional distress into a physical event.
Some studies suggest that chronic stress and anxiety can also lower the seizure threshold in people who already have epilepsy. The seizure threshold is the point at which the brain becomes susceptible to a seizure. High stress, lack of sleep, and hyperventilation from anxiety can all push someone closer to that threshold. The CDC notes that stress is one of the most commonly reported seizure triggers among people with epilepsy.
So the answer is nuanced. Anxiety does not create epilepsy where none exists. But it can mimic seizures through PNES, and it can worsen existing epilepsy. If you have been diagnosed with epilepsy and notice more seizures during periods of high anxiety, that is a real and documented connection.
What Does a Psychogenic Nonepileptic Seizure Look Like?
PNES episodes vary widely from person to person. Some people collapse and appear unconscious. Others thrash violently or shake. Some cry, scream, or speak during the episode. Unlike epileptic seizures, PNES episodes often last longer — sometimes several minutes to half an hour.
There are a few features that may help distinguish PNES from epilepsy:
- Eyes remain closed during the episode (common in PNES, rare in epilepsy)
- Movements are asynchronous or side-to-side head shaking
- The person may resist having their eyes opened
- No post-ictal confusion (the groggy, confused state after an epileptic seizure)
- Episodes often occur in the presence of others
None of these signs are definitive on their own. A proper diagnosis requires video EEG monitoring, where both brain activity and physical behavior are recorded simultaneously. The Epilepsy Foundation emphasizes that PNES is a real condition that requires treatment, not a sign that someone is faking or exaggerating.
How Is PNES Diagnosed and Treated?
Diagnosis starts with a neurologist. If an EEG shows no abnormal brain activity during an episode, PNES is suspected. A confirmed diagnosis often involves a stay in an epilepsy monitoring unit where video and EEG data are collected over several days.
Once PNES is diagnosed, treatment shifts from neurology to mental health care. Cognitive behavioral therapy (CBT) is the most studied and effective approach. A 2020 review in Seizure: European Journal of Epilepsy found that CBT significantly reduced episode frequency and improved quality of life in people with PNES.
Other therapies that may help include:
- Psychodynamic therapy to explore underlying trauma
- Mindfulness-based stress reduction
- Dialectical behavior therapy for emotional regulation
Medication is not effective for PNES itself. Antidepressants or anti-anxiety medications may be prescribed if a co-occurring condition like depression or panic disorder is present. But no drug stops PNES episodes directly.
What Should You Do If You Think You Are Having Seizures from Anxiety?
Start with your primary care doctor. They can do an initial evaluation and refer you to a neurologist. Do not try to self-diagnose. The overlap between PNES and epilepsy is too large, and the wrong treatment can be harmful.
If you are diagnosed with PNES, here are practical steps to manage episodes:
| Strategy | What It Involves |
|---|---|
| Identify triggers | Keep a journal of episodes and note what happened emotionally beforehand |
| Grounding techniques | Use the 5-4-3-2-1 method during early warning signs: name 5 things you see, 4 you feel, 3 you hear, 2 you smell, 1 you taste |
| Breathing regulation | Slow, diaphragmatic breathing can prevent hyperventilation from escalating into an episode |
| Therapy | Commit to regular sessions with a therapist experienced in PNES or trauma |
| Support network | Educate close family or friends so they know how to respond calmly without calling emergency services |
Most PNES episodes are not dangerous in themselves. The person will not stop breathing or injure themselves from the episode alone. But falls can cause injury, so it is wise to move to a safe, soft area if you feel an episode coming. Do not restrain the person or put anything in their mouth. That is a myth from epilepsy first aid that does not apply here.
Common Misconceptions About Anxiety and Seizures
A widespread belief is that PNES is not real or that people are faking. This is harmful and false. PNES is a recognized medical condition listed in the DSM-5 under conversion disorder. The physical symptoms are real and involuntary. The difference is the root cause, not the reality of the experience.
Another misconception is that anti-seizure medications will help. They will not. In fact, people with PNES are often prescribed epilepsy drugs unnecessarily, which can cause side effects like dizziness, fatigue, and cognitive slowing. A study in Neurology found that about 70 percent of people with PNES had been treated with antiepileptic drugs before receiving a correct diagnosis.
Some people also believe that if an episode stops when someone talks to them, it cannot be a seizure. That is not accurate. PNES episodes can sometimes be interrupted by a strong external stimulus or a calm, grounding voice. This does not mean the person is in control of the episode.
Frequently Asked Questions
Can anxiety cause a seizure if I have never had one before?
Anxiety alone does not cause epileptic seizures. But it can cause psychogenic nonepileptic seizures (PNES) in people without epilepsy.
How can I tell if a seizure is from anxiety or epilepsy?
Only a neurologist can tell for sure using an EEG. PNES episodes often last longer and involve closed eyes, but these signs are not reliable on their own.
What should I do during a PNES episode?
Stay calm, move the person to a safe area, and do not restrain them. Speak in a quiet, grounding voice. Do not call 911 unless there is a physical injury.
Is PNES a lifelong condition?
Many people improve significantly with therapy. Some stop having episodes entirely. Early diagnosis and consistent treatment improve the outlook.
