I was reading up on the posts about endometriosis causing this DD. I looked up some stuff on it, and I have all the symptoms of endometriosis. I also read there is no test to tell if you have it, that the only way to tell is from surgery. that seems kind of drastic! Is there any other way they can tell? I have a lot of abdominal pain, bowel and bladder problems, excessive abdominal fluid retention with my period. It worries me that this may be eating away at my intestines and bladder. What happens when left untreated? I had an ultrsound done and the dr said the thickness of the whatever-its-called in my uterus was normal, and so I didnt have endometriosis, but from what I am reading that is incorrect.