I am 64 years old for the past 5 months I have been have been having he awfulest smelling gas, about 7 months ago I had a colonoscopy had some polyps removed 3 , they were not cancer my gastro dr also took a sample of a little stool left up in there and it came back c diff was put on vancomycin for a week after a few weeks I started having this awful smelling flatulence it is so embarrassing can you suggest something I can do do I need to see my gastro dr. again please help