The "classic" migraine is preceded by an aura, which typically consists of strange visual disturbances zigzagging lines, flashing lights, and, occasionally, temporary vision loss. Numbness and tingling affecting one side of the lips, tongue, face, and the hand on the same side may also occur. But only about a third of migraine sufferers experience an aura, and fewer still with every attack.Migraine is a very common, but very particular, type of headache...