I have been through some similar experiences, the most punishing of which occurred after some heavy PE sessions involving way too much PE, way too often because I knew that I was going to sleep with this Australian girl. When push came to shove, I was lying down in a tent, with this hot, fiesty super experienced Aussie chick sucking my dick in every conceivable way, the only problem being that I couldn’t feel a thing. I couldn’t cum, couldn’t have sex, couldn’t even touch my dick properly without causing pain. Given a few days rest however and I was back to normal, but not without an ingrained sense of caution.
My advice would be that you relax. Your penis will recover if you rest it. The suggestion that you have damaged your dick permanently is paranoid and over dramatic in my mind. There are people who have their dicks chopped off, mauled, and horrendously damaged in car accidents and fires and yet they often recover full use of their dicks. It is your mind not your body that is causing you to entertain the unlikely possibility that permanent damage has occurred. If you want to do something proactive then do some Kegeling, otherwise just rest and relax and you will recover sooner than you think.