I'm scared to death that I have colon cancer that was missed in my colonoscopy. I'm having lower left abdominable pain and last night there was a lot of blood on the toilet paper. I've had symptoms like this off and on for over a year now with no diagnosis. I'm trying to get in the GI doctor this month but in the mean time I feel like I need to go to the hospital maybe they will do a catscan? Idk but Im worried sick and get random pains in my lymphnodes I feel like the cancer is spread ;( I'm only 20