You sound too young have OA it could be RA which is an autoimmune disease. Study it closely before you take any medication. Here is a little information to get you started and you may see the reason why it started in what I say. Autoimmune diseases are interesting and scary there are approximately 80 to 100 with another 40 waiting for a name. Medical science cannot explain why and has not found a cure for even one. You can trigger one of them just by having an auto accident, taking aspirin, medication or by starting a new exercise routine, even too much stress says latest research. Naturopathic medicine says, "Look for the root, it is in the basics beginning with what is on your fork, what toxins are in your body, what exercise do you do, what stress is in your life, what is your spiritual base". Scientific arrogance has led us down the wrong path we better stop and take a close look at what is happening. This month 144 new chemicals will be added to industry with no oversight control at all. Autoimmune disease is the worst kind of contradiction; for an RA or JRA you are attacking your joints with your immune system, a world upside down. God bless you in your search.

Sincerely
Paul