Up to 42 percent of migraine sufferers experience vertigo. The spells can occur before or during an attack, or even without head pain.

Symptoms: Dizziness lasting just a few minutes or for a day or more (which is why doctors may not realize migraines are the source of the trouble). One sign that seems unique to migraine vertigo is heightened sensitivity to sound during the episode.

The fix: Eliminating possible migraine trigger foods (such as chocolate, sourdough bread, aged cheese, dried fruit, smoked fish); taking antimigraine medications.