symptoms > Prodromal symptoms...

Prodromal symptoms.../h3> occur in 40 to 60 percent of migraineures. This phase consists of altered mood, irritability, depression or euphoria, fatigue, yawning, excessive sleepiness, craving for certain food (e.g., chocolate), and other vegetative symptoms.

These symptoms usually precede the headache phase of the migraine attack by several hours or days and experience teaches the patient or observant family that the migraine attack is near.