The aura , which is a symptom of a brain malfunction, may consist of flashing lights, blurred vision, numbness, weakness, or difficulty speaking. Both types of migraine can be associated with severe, throbbing head pain. While the pain usually affects only one side of the head, it can be bilateral, or it may switch from side to side. The most common other symptoms associated with migraine headaches are nausea and vomiting. Migraine headaches are generally aggrevated by bright light, loud noise, and activity.
Migraine headaches can last from a few hours to several days.
The pain of migraines can be so severe as to be debilitating or, on occasions, it can be very mild. Occasionally, some patients have attacks considered to be migraine auras, but have no headache at all. Sometimes, migraine headaches come in clusters that awaken the individual from sleep each night at about the same time for several nights. Migraine headaches are usually diagnosed by the grouping of the above-mentioned common symptoms. The occurrence of migraine headaches generally begins from childhood to early adulthood.