I injured myself a few years back due to PE (different type of injury) and I know how you feel. I also know that I felt alot better when I did finally see a Dr about my condition. I had a large blue circle like area of discoloration on the head of my cock. It went away eventually after no PE.
At that time of my Dr’s visit I was not much of a shower either and I did confess to him how it happend. He asked me if the PE worked and I told him it did. He did not seem surprised at all. He handled himself like a true professional and put my mind at ease. I felt much better afterward. You will to trust me. You only got one dick and it needs to last you. Get it checked out.