About 3 weeks ago I started having a change in stool I had a few days where I had frequent bulky pale colored stool .the. It was more of a yellowish color , soft small pieces. Like borderline diahrea . Then I had a week of normal colored stools. The last three days back to yellowish , and soft consistency . The last thing I ate before it started again was pizza. They have been occasionally floating stools as well . Tests I've had in the last few months for digestive related issues - colonoscopy with biopsies , celiac test, cmp, hepactic liver function panel , CT scan , H pylori stool test .. I have no idea where to go next or if I should leave it alone ? Beginning to think the doctor thinks I'm crazy . I also experience foul smelling gas off and on . No real pain to speak of . I also have GERD , not sure if that applicable here but thought I'd mention it .I am 31 male. Sometimes the urge to go hits me out of nowhere..any help is greatly appreciated !