I was recently diagnosed with Extensive DVT and I am wondering about blood in mt stool. Is this a normal thing or something to be concerned about? I just scheduled an appointment with my primary doc. But will not be able to see her for about another week. After spending over a week in the hospital I am in no rush to return there if there is no need. I have back and side pain and am wondering if I may be bleeding internally with out knowing it. Any advice would be great thanks. I am a 26 year old female if that helps any.