I've also had on-going issues with pelvic, lower abdominal pain. Also had some bleeding at one point, but realized that was from irritation at the beginning of the riding season, or after a long ride. I also had bladder infection symptoms, especially after long rides.
My gyn. recommended going to a sports med. doctor after I had a trans-vaginal ultrasound that showed everything was OK. Also saw a urologist to get the possibility of stones crossed off of my list.
I went straight to the PT, who solved a good deal of the problem. It's always going to be there, but I have lots of these things I do to keep the pain under control.