My bum keeps intermittently throbbing/twinging, like a kind of muscle spasm thing? It twinges a few times and then stops for a while then starts up again. It's potentially my actual bum hole.
I may or may not have a slight pile up there, slightly protruding. No pain, no bleeding, no other symptoms. Wtf is it? It's weird, it's uncomfortable and I just want it to bloody STOP dammit! Any ideas??