I get a sharp excruciating pain in my pelvic area on the left side and on the very bottom of my tailbone. When I get the pain on my tailbone I have an issue with walking, sitting and laying down same with the pain in my pelvic area it hurts extremely bad. Along with these issue my menstrual flow is usually a dark brown to black in color. I frequently urinate, and it is extremely painful during sexual intercourse, also frequent constipation, and pain when producing a stool. I've had this issue since I was 15 I am now 22. I told my former gynecologist endo runs in the family and that my mother had it along with my grandmother and aunt along with ovarian cysts, and she said there is no reason to have me tested, even though my mom's doctor highly suggests it. What should I do about this? I've tried taking Tylenol, Ibuprofen, and birth control pills to help with the pain like the doctor said and nothing has helped.