Ex girlfriend's brother was in a similar situation to you CM. He didn't want to go to the docs for fear of big C type bad news. He left it and left it, to the point where his family had to smash his front door down, to find him unconscious on his bed in a pool of blood. It wasn't cancer, it was ulcerative collitis, which is treatable, although like anything, the earlier you diagnose it, the easier it is to treat. Anyway, he ended up having all of his colon removed (no incisions necessary - they went in through the holes in his skin between the belly button and sternum) and now he has an ileostomy bag. Ileostomy is the most severe form. All this was preventable. All he had to do was go to the doctors.
That said, chin up, it may well be just a haemorhoid.