Hi, Recently I Just Developed This Little Bump At The

Hi, recently I just developed this little bump at the very end of my anus right before the taint region starts. It's not very big, and not hard, and it feels more like a skin tag or something, but I have never had it before. It felt a little sore at first, but I figured maybe I tore that area a little because sometimes I spread my cheeks to go to bathroom and maybe it just tore and is swollen, any ideas? Also I took a few pictures and it looks like i have these two small like bright, off white, almost yellow markings on one side of my anus but there's no swollenness or any soreness. Can you help??