They occur in cyclial patterms patterns or cluster periods. They are one of the most painful types of headaches. That commonly wake you up in the moddle of the night; with intense pain in or around one eye on one side of your head.
They occur in cyclial patterms patterns or cluster periods. They are one of the most painful types of headaches. That commonly wake you up in the moddle of the night; with intense pain in or around one eye on one side of your head.