This month I finally have a GI appt. but still in so much pain. I have left side burning/pulling and weird bloating feeling slightly above and left above belly button. The bloating seems to disappear after night but pain to sleep on side or stomach. I used to love to

I am very worried about something more serious. I seem to have back pain now mostly left side. Is this familiar to anyone? I really expect to hear the C news once I get in and get some more tests. All blood/stool CT abd/pelvis were negative but what else could it be? GP just said IBS. Any insight or tests that would be good? Thanks