Brain zaps equals electrical types shock inside your head...mine were caused by eye movement alone. The shocks got strong enough to make me very ill, dizzy, unable to do anything, usually in groups of 3-6 shocks each time . I've been electrocuted before and it felt similar inside my head to a certain degree. I only started this med back in march and it effected my 3wks after and was hell everyday after the taper down doses started. Evil drug