I also didn't feel anything during sex ( a lot of faking it ), until I finally told my partner and my older sister, I also got told its all in my mind. The trick is you have to think sexy, dirty fantasies In your head, it was hard at first, but closed my eyes and imagined fantasies. I hope it helps!!
I doubt that you have nerve damage. I think you just may not know your own body and what feels good to you. Please feel free to send me a personal message if you would like to talk more in depth.