migraine

migraine Usually, periodic attacks of headaches on one or both sides of the head that may be accompanied by nausea, vomiting, increased sensitivity of the eyes to light (photophobia), increased sensitivity to sound (phonophobia), dizziness, blurred vision, cognitive disturbances, and other symptoms. Some migraines do not include headache, and migraines may or may not be preceded by auras. See also migraine aura; migraine headache.