ocr: Reprinted with permission from Resident. and: Staff Physioian Rasidant and Staff Phyrician Patiant Education chart 0J1991-32, 1993 by Romaine Pierson Publishers.Ino. Where Headaches Originate II Neck and Jaw Pain - Muscle spasm or arthritis Vascular - Dilation causes Caused by a variety of migraine and conditions, among them cluster headaches hangover, fever, anemia, Intra- lack of oxygen, Inflammation as in cranial hydrocephalus, or temporal arteritis hemorrhage