I’m 18 old guy I have sexual problem call phimosis in which foreskin of penis can not be pulled back so that I can’t have sexual if I have sexual it will hurt.it can be treaten but I don’t want to do it now. That’s why I’m virgin.but I am in some type of relationship with girl.i want to have sexual with her and I know she will accept me but I’m afraid to tell her about my problem so I want advice about should I tell her or not.