Hello, and thank you for using Healthcare Magic! In order to precisely answer your question, I would need to ask you a great deal of questions, and examine your abdomen myself. But I will try to give you some general ideas about what could be causing these symptoms. Fibroids - these are benign tumors that grow in the wall of the uterus. They are uncommon in women of reproductive age. If they become large enough they could cause the bloating and lower abdominal pain you are describing Endometriosis - this is caused by tissue that is normally only found lining inner wall of the uterus growing outside the uterus. This pain is in the region you describe, frequently is worse w/defecation and during sexual intercourse, and also should be worse around the time of your menstrual cycle. Ovarian mass/cancer - These most commonly happen to women after menopause, but the symptoms you describe are consistent with an ovarian mass of some kind. I am not saying that this is the most likely cause! It is much more likely something else. The best course of action would be to make an appointment with your family doctor or gynecologist to be examined. It is possible that if they suspect a mass of some kind they will order a transvaginal sonogram, which is the best way to take pictures of the pelvic organs. I hope I have given you some useful information, and wish you the best of health. Sincerely, Dr. Kinney