Starting 3 days ago, I had bleeding when id go to the bathroom (rectal bleeding). The first time it was a lot of blood and bright red. The next day I went and it wasn't bad but it was still there. Now I have a bad pain in the right side of my back. I was constipated for a week before the bleeding occurred. What could this be?
See your Dr.
Any bleeding from the back passage should be investigated.
Bleeding with pain in the back should certainly be investigated. It may be nothing to worry about but if it was me I'd be heading of to the Dr very quickly.
Wishing you well,