When i try to retract my foreskin all the way it stings and pulls the frenulum really tight and curves my penis. is this normal and healthy?

See a urologist.: You should be able to retract your foreskin fully without pain and curvature of the penis. If this only bothers you when you really retract, is otherwise easy to keep clean and is not bothersome during sex, you can leave it alone. I do recommend a checkup, because adhesions, a tethered frenulum, or phimosis of the foreskin can be bothersome and in some cases, worsen.