Hi guys. 2 weeks ago I suddenly lost all sensation in my penis during sexual intercourse. I've been dating this girl for a few months now and for the past month we have been having unprotected sex because she is on birth control. The first two weeks were absolutely amazing and perfectly normal orally and during intercourse. However, it seems as if the last two weeks I've lost all sensation in my penis. I have to mentally keep an erection. I have also seen a reduction in sperm. It's more or less about the amount of a teaspoon or two now. No where near the amount I'm accustomed to. Trying to masturbate produces the exact same results also. I've also began having some very dull lower back pain. 2 out of ten at the most. Through research, I'm guessing it is either prostatitis or a pinched nerve. I will be going to the doctor in 2 days to have a STD test and explain to him what is going on. How concerned should I be that my feeling may never come back?View Thread