Dean, there are a number of conditions that might cause those symptoms - some not so bad, others more problematic. The only way you're going to find out what's actually happening is call your doc and make an appointment to be checked out. It's not a good idea to speculate when blood is in the picture.
Do follow CalGal's advice and seek medical help as rectal bleeding is never normal. So that you are better informed about possible causes etc, you may like to type in rectal bleeding to google and click on to one of the many sites - the Medicinenet site is particularly informative.