What Causes Nerve Pain In The Foreskin And Penis?

Hi i have suffered for a few years now< ive had a systoscapy, a hypergastric block and an epidural over the years, so ive been through the mill a little bit, however, i am left with very painful pins and needles and nerve pain in the foreskin and penis. the head of the penis is mostly very red, at times i have very little sensation. there is also another strange factor, my stomach and penis is very cold at times and also my knees are very red and hot