Constant Rumbling Of The Stomach Or Bowels. No Pain. Has

Constant rumbling of the stomach or bowels. no pain. has a endoscopy recently and saw a little irriation but biopsy came back clear, no ulcers or polyps. have had loose stools for months as well. had been on a low dose of thyroid meds cause I was tired all the time but It didnt do anything so I'm quit taking that.

Male, age 43, good body weight, exercise regularly, social drinking and smoker