I have had c diff for months (my first stool sample test came back positive, my second came back negative, my third positive, and my last one was negative). Although my last one was negative, my stools go from watery and causing me to go running to the restroom every few minutes to having days where I have soft stools and no pain (that was how my stool was at my last test). My doctor put me on a lactose-free diet, stopped my 8 weeks of antibiotics, and scheduled me for a colonoscopy. I was afraid to ask if it is colon cancer. This does not run in my family. I am obese (my whole life) and have Type II Diabetes. What are the odds that I have Cancer? I had Uterine Cancer 12 years ago.