JRA, seriously?

So, went to a different doctor today. He's perdy gosh darn certain I have an antibody disorder, also known as Rheumatoid Arthritis. Cure? none. But luckily, I may just have Juvinille Rheumatoid Arthritis, which means I could grow out of it as I get older. It's either that, or I may have fibromyalgia, let's hope its JRA.