Loss sensitivity in genital area

It's been 10 years now since I've almost completely lost the feeling in the groin area. I've done all sort of tests and the doctors said I'm ok. I'm starting to have frequent need to pee, very often..... no ED problems. It takes a long time with partner and I feel anything. My theories are - prostatis -cauda equina -some kind of neurotransmitter problems I'm a bit desperate because apparently there is nothing doctors can do for me, it's quite frustrating really.