Migraines are severe headaches that are associated with symptoms like nausea, light sensitivity, and numbness. For some a migraine lasts a few hours but for others it may last several days if left untreated. Migraine headaches can occur with or without what is called an “aura.” An aura includes visual disturbances like flashes of light, blind spots, or wavy vision and occurs about a half hour before the onset of…