Can Red Wine Give You Black Stool Intestinal Bleeding Question - Right Now I Went To The Bathroom And ...?

Intestinal bleeding question - Right now I went to the bathroom and ...? - can red wine give you black stool

I've since Saturday, black stools, but only three times I went into the bathroom and have a feeling of constipation. Initiallty coliforms were some black and then it will need to supplement the fiber. If you are concerned about bleeding? BLU is evidence to guard against ...
History: nearly 3 / 4 bottle of red wine on Sat, 3 cloves whiskey (although I felt I couldnt wood, which was in) and a small beer on Sunday.
Please tell me ....