Endometriosis Support Group
Endometriosis is a common medical condition where the tissue lining the uterus is found outside of the uterus, typically affecting other organs in the pelvis. The condition can lead to serious health problems, primarily pain and infertility. A major symptom of endometriosis is pain, mostly in the lower abdomen, lower back, and pelvic area.
It is good that you are having a colonoscopy, though you usually won't see endo during one (it is pretty uncommon for it to invade completely through the wall of the bowel) it can at least rule out other stuff!