For the past 11 years I have been dealing with lower left flank pain when I would menstruate. 7 years they performed laparoscopy-did not find any signs of endometriosi but removed my left ovary. This did not give me any relief. I learned to deal with this pain and just recently the pain progressed. I went back to my GYN doctor because now the pain intensifies when my bladder is full, have to have a bowel movement and pain during intercourse. I also have pain in my lower back. He thought it would be a good idea to go back in. However, when I met with a GYN surgeon, she did not think it was anything related to endometriosis and thinks it is something to do within the wall of my muscle in that area because now I am experiencing back pain. All my symptoms lead to endometriosis, who is to say that you can't have back pain with this? I am extremely frustrated at this point. I have been seeing GYN for the last 11 years, they sent me to Pain Med and Rehab and now they are sending me to a specialist in GI. My bills are racking up and I have no answers.