Still Out, and Frustrated

I'm still completely out because of a knee injury and very frustrated. I have my MRI on Tuesday, so hopefully things go on the fast track after that! I was in a car accident when I was a teenager and had glass in my knee as a result. At the time we thought that we got it out, but as it turns out, there is still some in there causing havoc! My doctor doesn't want me doing anything until they find out whats going on in there. I'm planning on the best outcome and hoping to run my first 5 k in May.