17. Seizures

Seizure symptoms may include convulsions, loss of consciousness, abnormal movements, confusion, and memory problems. 

They are a sign of serious health problems that affect the brain and/or the nervous system. Seizures can signify conditions like epilepsy, brain tumors, metabolic disorders, and other issues. 

They can be treated with the right professionals and medication, and professional help should be sought right away after a seizure.