If that's your, OR if you are into sports or dancing, this could be signs of an injury and you should talk to your coach, nurse, or parents, and get checked out.

If you are young, these may also just be growing pains. And they suck. They normally occur at night when you're trying to go to sleep. I know I had very bad growing pains in my knees when I was in my early teens. My Daddy would come in with a sock and apply ben-gay to my knee and stay with me until it felt better. It was a very painful few years. It didn't happen ever night, just every now and then. I didn't even realise this until just now!! I never thought much about those pains and hadn't thought about them for years, but I remember them keeping me up at night. Asprin never worked right away and the pain was fairly intense (I'd say a 4 or 5 on the pain scale, which is pretty bad for a kid) so that's why I needed ben-gay too.

well im 15, and the pain isnt really pain

i am a sports player, and have gotten x-rays and nothing showed up

Then the best you can chalk it up to is your bones growing. This can cause a range of sensations from simple discomfort, to itching, stretching sensations and yes, pain. The places you've stated for the pain is right where growing pains happen, so unless your doctor comes up with something else, that's the best I can advise.

Remember to do gentle stretches, warm up, and then do intensive stretching before participating in sports. This is the best way to prevent injury and maintain flexibility.

I am 13 and I have the same thing. It hurts when I run especially. The pain usually goes away within a day of running a lot. I play basketball, volleyball, and I dance. It's just started recently and it's really annoying.