Prodrome phase

Prodromal or premonitory symptoms occur in ~60% of those with migraines with an onset of two hours to two days before the start of pain or the aura These symptoms may include a wide variety of phenomena including: altered mood, irritability, depression or euphoria, fatigue, craving for certain food, stiff muscles (especially in the neck), constipation or diarrhea, and sensitivity to smells or noise. This may occur in those with either migraine with aura or migraine without aura.