i am 16 years old and i am uncut and recently when ive been masturbating, its been hurting to pull my foreskin back. i started masturbation at a very young age so stretching was never an issue for me. i looked closer at my penis one day, and i see this little cuts on the tip of my foreskin as if it stretched too much that it ripped a little. before i noticed that it was cut, i notcied that the tip of my forskin looked fatter and swelled up i guess. what could that be? my gf just found out that she might have warts, and we had unprotected sex once for a couple seconds and then we changed our minds to use a condom. could that have anything to do with it?