Another term for seizure is convulsion. Seizures can and usually do occur without warning. A seizure indicates an abnormal condition related to the nervous system, particularly the brain. During a seizure, a person often loses body control. The serious nature of this problem during pregnancy is compounded because of concern about the baby's safety.
Doctors describe different types of seizures.
Seizures involving the entire body are called grand mal seizures. Arms and legs often move about, and sometimes bowel control is lost at the same time. Following a seizure, the person may be in a state of recovery that may last for several minutes. As it passes, there can be mental confusion, headache and drowsiness. Another type of seizure is a petit mal seizure.