Prodrome

n.	1.	A forerunner; a precursor.
	2.	(Med.) A premonitory symptom; a symptom or sensation experienced by a person which presages the onset of a disease or abnormal physiological event; as, the prodrome of an epileptic seizure.

Noun

1.

prodrome - an early symptom that a disease is developing or that an attack is about to occur Synonyms: prodroma

prodroma, symptom