Obviously this is not pudendal nerve related but when I saw your mention of your sinuses acting up I thought I should mention a possible solution for you. I lived with an almost constant sinus headache for 20 years but since I started the following treatment I rarely have a headache. This treatment is an East Indian ayverdic treatment and was recommended by my accupuncturist.
1. Take 1 tablespoon of organic cold-pressed or expeller-pressed sunflower oil when you first wake in the morning up but do not swallow it.
2. Keep it in your mouth for 15-30 min and make chewing motions with your mouth. The oil will turn whitish or clear.
3. Spit the oil out and brush your teeth and wash the toothbrush with soap.
4. Do this for 3 months and then just as needed (I continue to do it most AM's because if I don't the headaches come back).
5. Refrigerate the oil and keep it sealed.
To some, this may sound ridiculous as it did to me before I started doing it but I was desperate. I'm so glad I tried it because it's truly given me back a decent life. The theory behind it is that the oil draws fungal spores out of your body which is why you should not swallow the oil. I have no idea if there is anything scientific to it but it works for me. I had a friend who was getting ready to have sinus surgery but decided not to after trying this treatment because it worked for her too.
It seems like it would be really hard to keep the oil in your mouth that long but after a few times you get used to it and it's very easy -- you just can't talk.
Now.......if only it were that easy to treat PN!
Good luck,
Violet