If you suffered from Migraine headaches, you would know it. For information, see
http://www.migraines.org/myth/mythreal.htmMigraine is disease, a headache is only a symptom. Migraine pain is caused by vasodilation in the cranial blood vessels (expansion of the blood vessels), while headache pain is caused by vasoconstriction (narrowing of the blood vessels). During a migraine, inflammation of the tissue surrounding the brain, i.e., neurogenic inflammation, exacerbates the pain. Therefore, medicine often prescribed to treat a headache, such as beta-blockers, dilate the blood vessels and therefore can make a Migraine worse.
Unlike a headache, the Migraine disease has many symptoms, including nausea, vomiting, auras (light spots), sensitivity to light and sound, numbness, difficulty in speech, and severe semihemispherical head pain. One Migraine attack alone can last for eight hours, several days, or even weeks.