Several Weeks Ago, I Woke Up With A Pain In

Several weeks ago, I woke up with a pain in my left elbow. I thought I must have slept on it funny. It has not gone away. It is like it is inside the bone or the joint. It hurts a great deal when I lift things -even light things like a plate - with my left hand. Today, I got up from my desk and the bone around or just above my right ankle hurt very badly - again like I had sprained it. But I had done nothing. It has continued to hurt all day quite badly. The pain in hte elbow and the ankle feel like they are inside the bone or deep inside the joint. I am 53, mildly active. I do some yoga (about one a week - light) and I live in an urban area and walk everywhere. Otherwise, I don't do exercise. I'm overweight.