“Severe loss of sensitivity due to penis pump?”

I used a penis pump several months ago but stopped after I started experiencing pain. Throughout the past few months I have had pain in my penis, typically intensifying the more I masturbated. About two weeks ago, after I started losing sensation in my frenulum. About one week ago, I started to lose sensation in the head of my penis, and then I stopped masturbating. The pain has started to subside however I have lost a great deal of sensation - it sort of feels like there's something covering my penis. I was wondering if this will be permanent, and if it will not be/could not be permanent, what do I need to do to fix it?