Ow My Back Hurts-----My Body Too...

I had PE on Thursday and it left my back, my side and my legs hurting (from volleyball). My body is still aching right now and owwwwwwww I really hate it. I can't bend down because my muscles would give me that tearing sensation. I knitted for most of the day and my shoulders hurt so much. My wrists hurt from playing the piano for three hours straight (with no rest). I am sad. I am suppose to be enjoying my free time right now. But...