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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.
A migraine is a severe headache that can induce nausea, vomiting, and sensitivity to light, sounds, and smells. In up to 30 percent of all incidents, sufferers experience an aura, or warning, consisting of visual disturbances, numbness, and speech difficulties leading up to their migraine. These warning signs are very similar to the symptoms of a stroke.