I've had tight foreskin, that went from not being able to pull back when flaccid, to being able to comfortably pull back when half erect over the years, primarily through carefully stretching my foreskin during masturbation. It will be treated once and for all using flesh tunnel like devices that I'm having delivered over to my house. When the glans started exposing itself, it was painfully sensitive to the touch, and I couldn't initially clean my penis. Nowadays I can comfortably, but its still sensitive, which is important to retain for pleasuring sex. The pain and sensitivity comes from the fact that your penis has had no contact with anything apart from your foreskin, which is completely natural and can only be treated with painkillers. However, once the pain resides and your stitches are removed, your penis will be healthy and functioning comfortably. However, having no foreskin could eventually mean you lose normal sensitivity, but this can easily be prevented through moisturising and cleaning your penis with sensitive cleaning products, such as Cetaphil, in addition to preventing your glans from constantly rubbing surfaces hard, I've heard from circumcised friends that a baby wipe and a tissue behind it on your crotch may help with that.