I would guess that you're describing tissue left over from
circumcision. This matches no medical condition I can even think of, including the ones you list. I'm not sure why you're even worried about it, but since you are, you will need to see a doctor in person. I understand and appreciate your reluctance, but there's no shame in asking a doctor to take a look, especially when you'll almnost certainly learn that you have nothing to
fearFears and phobias and no treatment to do.
Take care.
Dr. Rockoff