I've been working through 8 Steps to a Pain Free Back and seeing great improvement in my lower back pain. I have a question about stacksitting that I'm hoping someone with experience either teaching the method or practicing it could answer. When I stacksit, my lower back pain is gone, however, my mid to upper back muscles start to burn a little bit and tingle after a few minutes. I thought perhaps I was tensing my shoulders but that doesn't seem to be the problem. One thing that does alleviate it a little is letting my head tip back to a position more like it used to be in (because of the whole stooped, squished position I developed from years at a computer). I suspect the burning and tingling is just my musculature getting used to a new position, but I'm curious to know if others have had this experience as it always makes me question if I'm doing something wrong.
Thanks for your time!