You are awfully young to be having so many problems! Twins! Congratulations girlfriend! Have you not discussed this with your primary care physican/obgyn? They can in turn refer you to a specialist. Does colon cancer/cancer run in your family? Just had my first colonoscopy this past tues. My father died 2 weeks ago from colon cancer. I do not have to go back for 10 years. Best to have this checked out, as you ahve children to think of. Please go and have yourself checked. I am not a Dr. But I do know if you are concerned, are passing blood,and there is pain you need to take better care of yourself and see a doctor. Please fell free to private message me. God bless you and your family!