A migraine is a severe headache, accompanied by other symptoms such as increased sensitivity to light or sound, nausea, or visual disturbances. They are particularly distressing, since they can last for hours or even days at a time. One contributory factor in migraine might be problems originating in the vertebrae (the bones in your spine) in your neck. Chiropractors are able to pinpoint a loss of proper movement in the vertebrae and associated areas, and correct it, reducing stress on the muscles, joints and nerves.