Had a Botox shot in the stomach 5 months ago. Bad gas, diarrhea, 2 days after shot uncontrollable bowels

Thank you for your question and I am sorry to hear of your stomach issues.  I would talk to your injector about your symptoms, I am assuming the Botox was placed for muscle spasms?  It should not have affected your bowel function and this deserves further investigation.  

I am unsure this is right forum to ask about botox injections into a non FDA approved non cosmetic treatment.  Best, Dr. Emer.

The question is far too vague to give you an appropriate answer. Check with your surgeon that gave you the injection. My my personal experience with Botox is that its effects wear off @3-4 months. Best