Question: I have been diagnosed with an enflamed colon and it's been that way for almost a year. A doctor found it with a CT scan and they also found a mass in the peritinium. l changed surgeons because the doctor that found it would not schedule the surgery due to his vacation schedule. This surgeon will schedule it now but I forgot to ask him about the mass. Also the infectious disease doctor (due to C-Diff) gave me Vancomycin Hydrocloride and I have had diarrhea ever since. It worries me because it is constant and it''s black. I think there is blood in it. They had me do a stool sample but it won't go in until tomorrow. It is frozen to keep it fresh. I am very worried and wondering if I might have colon cancer or what might be causing the bleeding. Why did the diarrhea start after I started that medicine. I was somewhat constipated before that and before that I was having normal bowel movements. I go to the surgeon again on Tuesday and the Infectious disease doctor on Wednesday, but I am not feeling secure and not sure of what I should be asking. Can you help me?

No one has asked me if I had blood in my stool. I'm not sure if I can call the lab and ask them to check the fecal sample I take over tomorrow.