A migraine headache is characterized by an intense, throbbing pain, most often on one side of the head and sometimes involving the neck. Extreme sensitivity to light and sound, nausea and vomiting, and coldness in the hands or feet may accompany the migraine headache.
An "aura," a visual disturbance that appears as flashing lights, jagged lines, or a temporary vision loss sometimes occurs before the headache. Migraines typically occur 1 to 4 times per month and last, on average, from 4 to 72 hours. Migraine triggers are numerous and include lack of food or sleep, bright lights, hormonal changes (in women), anxiety, stress, weather changes, and certain drugs.
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