Posted 2/6/2021 3:26 AM (GMT -7)
That's an odd thing to have happen. Are your bowel movements normal (no weird gas or diarrhea)?
If bowel habits haven't changed then bacterial overgrowth seems unlikely.
Have you tried buscopan, or any over the counter antispasmodic? Sometimes the bowel can get out of rhythm...
I hope things settle, or somehow the rifaximin helps.
( Pretty good that the colonoscopy looked fine anyway.)