I have this problem EVERY SINGLE night and a lot of times the
pain is on the
left side of my abdomen. I have had all sorts of blood work, an
abdominal ultrasound, a pelvic/transvaginal ultrasound, an abdominal and pelvic catscan, a pelvic MRI. Fortunately or unfortunately all those tests have been normal. The only tests I have not had done (and can't right now because I'm pregnant) are an endoscopy and colonoscopy.