damn, i think i pinched a nerve in my back or slipped a disc or something. i've been in bed alll day today. and hopefully i'll have shown signs of some improvement tomorrow morning. nguyen called and said when this happens, a good thing to do is go on a 20 minute walk on level surface. and after my walk was over, i went from being in pain to being in a lot of discomfort. that is still a big improvment.