Hi, i've recently found a disorder called phimosis. I'm worried that I suffer from it. I've been masturbatiing since about 12 possibly younger. Eitherway throughout all that time i've never managed to get my foreskin over my glans and it gets really tight and starts to hurt when there's about a 1cm in my foreskin over my glans. I've read up on stretching and i'm currently in the process of trying that now (not as we speak you understand?).
I have a rather strange masturbation technique too and I think that may artibute to the problem. Basicaly I grip the head of my penis through my foreskin (no choice

) and just rub my head up and down through the foreskin. Would this be a problem? I just find masturbation with the shaft of the penis is awkward and it takes more time for me to climax. I masturbate daily.
I'm 17 years old and i'm 18 next may. I'm a virgin. Is this normal (not me being a virgin, the question applies to the above)