Since last few months, I think there is a decrease in sensation of touch on my shaft foreskin. I can feel it when I hold the shaft tightly but a very gentle touch is less noticeable. I tried holding it with very cold hands but it doesn't feel as cold as feels on other body parts. I am also not sure if this is different from what others feel and if this has been like this for long and I just started to notice it now. Please help me understand if any thing is wrong.