Sorry to hear about your PN pain. The pudendal nerve affects the anus as well as other areas of the pelvic floor so what you are experiencing is probably due to an entrapment issue with this nerve. There are clinics that try to stretch various muscles that could entrap the pudendal nerve. Some people get relief within a couple of weeks, some in a year or two, and some never experience relief. From what my wife has gone through you just have to keep searching to find the cause of the entrapment otherwise the only help doctors will give you is pain medication. My wife's pain levels like yours has intensified also. No one can say why but the pain has increased.