Irene, I wish I knew an answer for you. With me, it's muscle spasms in my back - to the point knots come up about the size of my fist, and I can't breath until they release a bit. I am going to try a new muscle relaxer next week - if it works I will let you know. Drs have no idea of causes or cures. Tonight is the third night this week it's hurt too bad to lay down, much less sleep. If you find an answer, pass it on, please? bob aka tex ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com