ocr: Resident and Staff nySICIOM Patiant Education Chart Classic Migraine Headaches a Due to a decrease in blood flow followed by an increase * Causes an "aura", bright lines and distortions "Aura" is replaced by throbbing headache * Often accompanted by nausea Reprinted with permission From Resident and Staff Physician (c)1991-92, 19931 byl Romaine Pierson Publishers, Inc.