I feel the same, almost exactly. Except now my lower back is slightly upset because I laid on my back all night.
But since I'm not any worse, I'm going to go to the farmer's market, just walking slow and not doing anything stupid.
It drives me crazy! All I had to do was just put the money in my right side pocket. 10 seconds of stupidity, and I felt it when it happened, like the muscle tried to grow and couldn't, and then the ow.