Yes, it is normal. Every man's penis goes either to the right or the left. I'm not sure what you mean when you say "curve" if it actually curves I bet that is ok too, my best friends dad-his penis does have an actual "curve" to it and he is totally fine!
and don't ever be afraid to talk to your doctor about this or anything for that matter!
I agree with jjsh44, it sounds entirely normal. Mine curves that way too.
And don't be afraid to talk to your doctor. My wife is a doctor, and I can tell you that they are almost all wonderful people who want to help patients. The biggest problem they run into is a patient who doesn't tell them everything that's wrong with them or bothering them. Then, they can't help you.
Sounds like you've got nothing to worry about man :) And really, tell your doctor everything, no matter how embarassing. It could save your life.
Here's an example: My dad had a very funny odor coming out of his penis that smelled like a fart. Embarassing, yes. But he told his doctor anyway. Turns out he had a fistula between his colon and his bladder, which can really mess you up if not treated. He got it fixed, and has never been better. If he had ignored it, he might started bleeding, and eventually could have bled to death.
Morgannon
Yeah, given your age it's probably congenital curvature. I hear that anything up to about 30 degrees is considered normal.