not biologically differentiated or adapted to a specific function or environment

an anxiety disorder characterized by chronic free-floating anxiety and such symptoms as tension or sweating or trembling or lightheadedness or irritability etc that has lasted for more than six months

epilepsy in which the attacks involve loss of consciousness and tonic spasms of the musculature followed by generalized jerking

a seizure during which the patient becomes unconscious and has convulsions over the entire body