seizures

It may be hard to tell if someone is having a seizure. Some seizures only cause a person to have staring spells. These may go unnoticed.

Specific symptoms depend on what part of the brain is involved. They occur suddenly and may include:

Brief blackout followed by period of confusion (the person cannot remember a period of time)
Changes in behavior such as picking at one's clothing
Drooling or frothing at the mouth
Eye movements
Grunting and snorting
Loss of bladder or bowel control
Mood changes such as sudden anger, unexplainable fear, panic, joy, or laughter
Shaking of the entire body
Sudden falling
Tasting a bitter or metallic flavor
Teeth clenching
Temporary halt in breathing
Uncontrollable muscle spasms with twitching and jerking limbs
Symptoms may stop after a few seconds minutes, or continue for 15 minutes. They rarely continue longer.