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A prodrome (group of symptoms that precedes a condition) can occur in the days prior to migraine. Symptoms of this prodrome can include depression, food cravings, yawning, neck stiffness, hyperactivity, irritability, confusion, diarrhea, or constipation.
Chronic migraine symptoms. Symptoms of a chronic migraine occur at least 15 days in each month and for at least three consecutive months. A chronic migraine must also involve two of the following migraine characteristics for a minimum of eight days in a month: causes moderate to severe pain. predominantly affects one side of the head.