Had the same problem believe it or not for about 2 years although mine was more sporadic. If you've had a pelvic exam to check for the existence of fibroids, polyps and endometrosis, my next suggestion is to see a gasterointerologist. Sometimes what feels like a uterine problem may actually be a gastro problem (lower intestinal). I was diagnosed with IBS and was prescribed a muscle relaxer. My symptoms were accompanies by diarrhea at times. I however chose a different route. I didn't take the medication but sought the help of a homepathic doctor. You must understand that western medicine treats specific problems and when a proper diagnosis cannot be made, the system of elimination is used. Homeopathy treats the entire body as a whole much like acupuncture. I have been using the medicine for about 8 months now and not only is my pelvic pain gone, but so is my diarrhea, my acid reflux is under control, my monthly bouts of tonsilitis are gone and I have not felt this good in years. Good luck!