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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.
School of Medicine, Family Medicine answered. The symptoms of a silent migraine are usually visual disturbances, dizziness or nausea, without a headache. Silent migraines are very unusual because nearly all migraine attacks cause a headache and are therefore not considered silent migraines.