I am 17 and i have trouble retracting my foreskin. When i am erect i can retract it about half way. When im not erected i am sure i can pull it all the way but i feel a little bit of pain and it is discomforting. The head of my penis is Super Sensitive so i cant touch it. I am curious. When i pull my foreskin completely back, will it be painful? And whats the best way to get rid of the sensitivity? ANY help would be great Thanks.