extreme pressure sack relieves back pain

⁣if from inflation fetish fun-
gets really serious. A hose accidentally came off. as a result, only one chamber was inflated. the sack straightened my back horizontally and arched it vertically. a strange feeling with my back pain.
Then I consciously did it in the other direction!
It was like a release, a little crack and it got better.
I've been doing this for 2 weeks now, bending 3 times for 1-2 minutes in each direction! My back is fine.
side effect. I overdid it a bit with the pressure.
I let myself be squeezed too hard.
Now my ribs hurt a little.