Severe lower left abdominal pain. have had hysterectomy, appendectomy, ct, colonoscopy. no answers. pain is intermittent w/no pattern/trigger. ideas?

IBD: You may have ibd if all those studies are negative. If so, then treatment with metamucil or its equivalent, should relieve your symptoms. Another cause could be pelvic adhesions. You should see a surgeon, a diagnostic laparoscopy may be in order depending on the severity of your symptoms.

LLQ Pain: The "left lower quadrant pain" can be due to post surgical changes in the abdominal wall, pelvic congestion syndrome, intermittent ovarian torsion if the ovary is still present, sigmoid volvulus, or endometriosis. Consider mr with contrast.