GI problems (heartburn, bloating) 3 weeks after hysterectomy?

I'm 54 and had robotic full hysterectomy on 10/14/14. Came home and developed infection 4 days Post-op which put me in the hospital for a week on iv antibiotics. I don't know if it's the antibiotics I came home with but my stomach has been a mess. Bloating, heartburn pretty much no matter what I eat. I have followup appointment with gyno-oncologist surgeon tomorrow.

Anyone out there with similar experience?
Thanks!