Cluster Headaches is about 5 times more common in men than in women.
Sudden, very severe, sharp, stabbing headaches that occur on one side of the head, usually in the temple or behind the eyes and occasionally in one cheek or jaw.
Your affected eye is bloodshot and teary. The nostril on the side often becomes blocked and may run profusely, other features can include reduced pupil size on the painful side, a dropping eyelid, and a flushed face. often begins at night & last from 30 minutes to a few hours.
The headaches may recur several times a day, Attacks may last 4-12weeks, or they can occur for a year or more without remission (chronic attacks).
Many men who get them are heavy smokers & drinkers.