Sorry Passion to hear that :( . As you could see there were more than couple of us that said yes - period does effect anorectal area LOL. I know you would wish to hear even more stories but this forum is not as active as it used to be. BUT- Fissy's memory is pretty good so I can tell you that yes, many other girls here had the same problem !!!!
I hope you do not feel alone any more ; )) !