I HAVE DIARRHEA,FOR OVER A MONTH. MY POOP VARIES FROM BLACK,GREEN,LIGHT COLOR,TO RED BLOOD IN IT. I VE HAD STOMACH PAIN,GAS PAIN. MYLANTA SEEMS TO HELP MY STOMACH. I M TIRED, AND ALREADY HAVE A HARD TIME GETTING A FULL NIGHTS SLEEP. I M 50yrs OLD. BLEEDING ULCERS RUN IN M Y FAMILY,ALONG WITH MY GRANDMOTHER HAD COLON CANCER. I M NOT SURE IF I SHOULD JUST GO TO THE EMERG,ROOM. OR GO THROUGH THE WAITING WITH MY DR. THANK YOU THERESA