early 15c., from Middle French lesion, from Latin laesionem (nominative laesio) injury, from past participle stem of laedere to strike, hurt, damage, of unknown origin. Originally with reference to any sort of hurt, whether physical or not.
Most migraines last about 4 hours, but severe ones can last up to a week. How often they happen differs for everyone, but itâs common to get two to four headaches per month. Some people may get migraines every few days, while others get them once or twice a year.
That's something doctors should taken into consideration when diagnosing migraine since it's a genetic neurologic disease. Migraine symptoms can last for over a month, but they shouldn't. Typically, a migraine lasts from 4 to 72 hours. Migraine can occur without the headache. For more see Acephalgic or Silent Migraine - The Basics.