What should I do about my bloody stools?

Get seen. Bloody stools can be due to hemorrhoids (internal & external), fissures, fistulas,polyps, cancer and inflammatory or infectious conditions.
See your doctor. This is a problem that necessitates a face-to-face meeting with your doctor. This will allow him/her to examine you, ask specific questions. And possibly order tests to find out what's wrong and what to do to help you.