I've had these pains in my legs for years but my doctor keeps diagnosing me with different problems?

RA is easily diagnosed with a blood test. It usually begins in your hands and is not common in young people. Your dr could easily diagnose this, if you have already seen him I dont think it is RA. Leg pain like this is hard to diagnose I have been doctoring with it for almost a year, had several tests, I find if I take Ibeprofen every 4 hours it helps however it is hard on your stomach. One thing they suggested for me was hot baths and good shoes. Sleeping is a BIG problem, hot milk with honey help abit. I think having your back checked might be a good idea.