I have had a very achey, almost throbbing, pain that was around my anus and vagina (can i say those words on here??) every month on the first day of my period, which started after I had DD. I put it down to the tear I got while giving birth and the general trauma that area goes through and the impact of the monthly hormones on the area. I've never had haemmorhoids..... But as above, if I was worried or in a lot of pain, I'd be off to my GP.