There are any number of jokes that can be made about a person suffering from a migraine, not the least of which is the whole PITA comment. I've had migraines and cluster headaches since I was 11.
This article states that only one in twenty sufferers is receiving preventative treatment.
Part of the problem is that many people, perhaps half, don't realize they have migraine headaches, said Dr. Frederick J. de la Vega, a neurologist with Scripps Memorial Hospital La Jolla in San Diego. "People will say they have a sinus headache, but that's basically just a layman's description of the headache they have."