I have recently had very strange sensation around the anus. I cant quite describe it but its like something inside that is pushing out or pulsing slightly. It feels like a loosening of the muscle. Its not painful or uncomfortable but very irritating and it comes and goes. I recently went to a colorectal surgeon who did an exam and said that my bowls looked healthy and that there was no sign of a peri-anal abscess (i have been a sufferer of these previously and that is why i went to the doc in the first place). He said there could be an abscess there but if it is, then its too small to spot.
I thought as this sensation comes and goes it could be intestinal worms or something but im not sure.