Some people do receive warning signs of a coming seizure, according to Healthline. However, many of the warning signs of a seizure resemble symptoms of other conditions, so people do not always recognize that a seizure is coming, according to Healthline.
The most common warning signs of an oncoming seizure include alterations in vision, a feeling of dizziness, nausea, or sudden onset of anxiety of fear. Once the seizure hits, it can last from a few seconds to as long as 15 minutes, as stated by Healthline.
Signs that a person is going through a seizure include uncontrollable muscular spasms, sudden mood swings, loss of bowel or bladder control, grunting (or making other strange noises), clenching teeth, sensing an odd taste in the mouth, frothing or drooling, falling, swift eye movements and a blackout of time accompanied by a state of confusion, notes Healthline.
A number of different medical conditions lead to seizure. Some of the more common examples include epilepsy, brain infection, brain injury during birth, choking, drug withdrawal or abuse, alcohol withdrawal, high blood pressure, liver or kidney failure, stroke, electrolyte imbalance, or a reaction to stings or bites. Seizures can be a genetic condition, which makes it important to note family history of seizures when giving a medical history, states Healthline.