Hey Rainy... I'm on Lamictal and I used to have horrendous cramps from my period (I would miss 2 days of school/work a month because of them). About 4 years ago I went on the pill, it took me about 3 different brands to find one that helped, but it took them away almost completely. I have noticed that since I started to take lamictal a few months ago that my cramps have returned... not as bad as normal, but they're there. I would suggest trying birth control if you're not already on it, it may help...
Glad to hear I'm not the only one with this problem!