Cluster headaches, very common and can be related to stress, and histamine release. Migraine headaches are one of the more severe headache types and can be very debilitating in nature. There is no known cause, however, it is generally thought that it is due to constriction or dilation of blood vessels in the circulation of the head. Flashes of light, changes in eyesight and some numbness and tingling often precede migraine. Pain usually occurs one side of the head, but at times may be generalized.
Migraines can occur on a daily basis or once in several months, and can last for hours or days.
Intolerance to light, nausea and vomiting and no appetite usually accompany them. Migraines can start at any age, and are more prone in women, starting between the ages of 10 and 30. After the age of 50, migraine may or may not go into remission. They are usually one-sided, involving the eye, temple, face and neck. Blood vessels are dilated on the side of pain.