Pathways of Migraine

This is how a migraine starts. I just thought that it would be interesting to share it - especially since I know a lot of people who suffer from migraine. What triggered this curiosity about migraine? My left eye has been hurting since last night. And so has the left side of my head. It didn't allow me any restful sleep at all. Why does migraine have to exist?


Photo Compliments of GlaxoSmithKline, Inc.