Hi,
this could be anything from bleeding hemorrhoids to cancer, you really need to overcome your discomfort and see a doc, asap, ER if necessary!!!

here's some links to read about intestinal bleeding and what to do for different causes.

http://www.curezone.com/schulze/her...lon_cancer.html

http://www.curezone.com/books/onlin...e_Intestine.asp

http://www.curezone.com/books/onlin...mate_Tissue.asp

http://www.curezone.com/schulze/her..._parasites.html

http://www.curezone.com/books/The_C...l_Diseases.html

best wishes
Mila