Jester, I was going to mention you as I knew you were a runner. That's a shame what happened. I don't really know what to say, but I don't think this is the end for you and your running. When I run, and I'm not competitive or anything, I run against myself and no one else. So what if your not at your personal best times anymore, run for yourself and the positive effects you feel once you can run again.
That's the best thing about running, it's a solitarity acitivity and I even leave my running watch at home now.