Selena,
You need to try and stay calm and stop making statements that you do not know are true...because there is the most minute...close to nothing chance that you have colon cancer.
Anemia is completely common among women of childbearing age. I think just about
everyone I know has had it at one point.
You'll likely be put on Iron supplements, and that will be the end of it.
The bleeding as I said in your previous post (and what Paniccu said above) is certainly due to hemorrhoids and fissures.
Have you started the Health Anxiety self help that I suggested to you yet? If not, please do. It will help.
You are going to be alright.
S.C.