Seizure sickness, more commonly referred to as epilepsy when chronic, involves unexpected bursts of electrical activity in the brain leading to seizures. The symptoms can vary starting from sudden, intense feelings of fear or anxiety, confusion, or staring spells to full-body convulsions. Some people may experience:

1. Temporary Confusion: Typically follows the seizure, referred to as the postictal state.
2. Uncontrollable Jerking Movements: Often affecting the arms and legs known as convulsions.
3. Loss of Consciousness or Awareness: Some individuals may faint or experience blackout periods.
4. Psychological Symptoms: These could include fear, anger, or a sense of déjà vu.
5. Staring Spells: Especially common in absence seizures (petit mal seizures).

If you or someone you know displays symptoms of seizure sickness, it's essential to consult a healthcare professional for proper diagnosis and management. Sources like medicalnewstoday.com and epilepsy.com offer comprehensive information and resources on managing seizure conditions.