tumor / FOR RECTAL CANCER / large tumor / cancer / volvulus / disease / OF COLON CANCER / shock / FOR COLON CANCER / cancerous tumor / nausea / colon cancer / earlier colon cancer / pain / vomiting / fatigue / Bowel cancer / diseases / colon cancer WHAT ARE THE SYMPTOMS OF COLON CANCER / colon and rectal cancer / diarrhea / both cancer / constipation / rectal cancer / anemia / /