How can you tell if you have a migraine?

Bad experience: Some pts have auras, or premonitory symptoms, which include bright spots before the eyes, light flashes, perhaps numbness over face, mouth or arm, and speech problems perhaps. The headache typically is unilateral, throbbing, associated with light and noise sensitivity, nausea, and vomiting. The duration is often 6-8 hrs, but up to 2-3 days in a few unfortunates. If familiar, see doctor.