Why am i having so much problems with my knees at such a young age?

premature wear and tear of cartilege is often associated with formation of abrasive crystals. that can be linked to kidney failure/ accumlation of metals or unexplained early-onset arthritis. if you see a doctor, there could be twenty or thirty tests to choose from. that could be expensive. a dietetic approach could identify contributing factors and reduce the number of expensive tests.