Tmi is it only me?

So does anyone ever have this happen? Like 4days to a week after my period sometimes when i go to tge bathroom usually number 2 ill have a good amount of dark dark cm and blood (not from my bum) only when i wipe im assuming its old blood from af but i also have alot of ovarian issues cysts and a tumor and i think pcos still waiting on a doc apt for that but is it normal?