Your post is so limited and does not offer any information. I am sorry that I have no suggestions for you.
However Jaybay is correct. At sixteen you should be discussing your medical concerns with your parents or guardian. They should assist you in obtaining a diagnosis.
Best of Luck to You,
~Tuck
I see you're 16 years old. Have you told your parents about your pain? Since you've had this pain for so long you really need to see a doctor.