What Is a Seizure?

• A seizure is abnormal electrical activity in the brain that happens quickly. It may go nearly unnoticed. Or, in serious cases, it may cause unconsciousness and convulsions, when your body shakes uncontrollably.

• Seizures usually come on suddenly. The duration and severity of a seizure can vary. A seizure can happen to you just once, or over and over. If they keep coming back, that's epilepsy or a seizure disorder. Less than 1 in 10 people who have a seizure get epilepsy.

• Types of Seizures

  1. Generalized seizures: Generalized seizures involve your entire brain from the start. 

  2. Partial (focal) seizures

• Seizure Symptoms

  1. Uncontrollable, spastic movements of your body

  2. Stiffening and then loosening of limbs or muscles

  3. Loss of consciousness

  4. Confusion

  5. Sudden emotional states that can include a feeling of doom, deja vu, fear, or euphoria

  6. Involuntary movements of your tongue or mouth, screaming or crying

  7. Falling to the ground

• Causes - Seizures can happen with no explanation, but there are also conditions and events that can bring them on, including:

  1. Stroke

  2. Brain tumors

  3. Head injuries

  4. Electrolyte imbalance

  5. Very low blood sugar

  6. Some medications

  7. Withdrawal from some medications

  8. Use of narcotics, such as cocaine and heroin

  9. Brain infections, like meningitis

  10. A high fever

  11. COVID-19

• Seizure Treatment and Lifestyle Management - It is possible to have only one seizure and not require treatment, but if your seizures continue, there are several ways your doctor may suggest treating them.

  1. Medication 

  2. Surgery - If your seizures always come from the same place in your brain, it may be possible for a neurosurgeon to remove just that portion of your brain to stop the seizures. 

source: https://www.webmd.com/epilepsy/understanding-seizures-prevention