I m having sharp pain in my lower back, pelvis, and abdominal area. The pain even runs down both of my legs. This has been going on for about three months and mostly right before I get my period. Along with this, I have bloating, sometimes diarrhea, and hot flashes. To ease my pain, I ve been taking over the counter medicine and applying heat. I ve only had one pregnancy, which was fourteen years ago. Is it possible I could have endometriosis?