Stretch-sitting and stretch-lying (on the back) are working great for me, and I am no longer waking with back pain in the night (though still feel an ache in the morning).
I am having a couple of issues when trying to stacksit.
1 - It feels comfortable for a very short time (often less than a minute), then I get an ache in my lower back quite quickly, and want to slump. Does this indicate a problem, or is it normal that I should just do it in very very short spells at the beginning?
2 - I cannot be sure what I am doing with my pelvis. I have tried shuffling backwards, or forwards, to correct it in case it is tucked or too tipped, but when I look in the mirror, I cannot see any difference (the back looks quite straight, and definitely much better than when I am slumping as usual), and it doesn't really change how it feels.
I am using 22 degree wedge. I have seen that most wedges are 11 degrees, but the description of the one I bought said that 11 degrees is not enough to correctly position the pelvis. Do you think that actually an 11 degree wedge might be better?
Thanks for any advice.