I would just like to know why this happens. I had to have a hysterocomy in Jan. of 2000. Several months after I noticed that on or about the time that I would have started my cycle I was experiencing mentral cramps. They tapered off. But now I am finding myself having them all over again. Can you please explain why this is happening. Also, I don't know if this is important but during the surgury my Dr. said that she found some endo on my colon.