I have had chronic migraines since I was 11. About 15 years ago I had a grand mal seizure caused by a medication I was taking at the time. Several weeks after I realized that I had not had a migraine. It seems that the seizure had "cured" me. I was migraine free for about a year before they started up again worse than ever. At one point I discussed electric shock therapy with my PCP but fortunately I was able to minimize them with diet. I am very curious to know if anyone else has had a similar experience.