I'm only 13 years old and I have very bad knees. My family doesn't believe me, but they don't know what pain I go through. I can't sit with my knees bent, It hurts to play any sports. I am a huge sports fanatic, I play every sport that I can, and it hurts to play them, but I don't want to stop playing sports. Does anyone know what's wrong with my knees, or any exercises I can do to help them ?
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