I just had a pretty bad one last week, but it was the first I've had a in a couple of months. I believe it was triggered by me taking my antispasmotic the day before, but not positive. I have a rx for Maxalt, but wasn't sure if I could take it the day after the antispasmotic, since antispasmotic instructions say to take 12-24 hrs, and it had only been like 15 or so. Other than that, not bad. I've taken the Maxalt 2-3 times. I was terrified to take the stuff, because of the icky side effects, but finally broke down and tried it back in Oct. No side effects, and relief at last!