:?: :?: total mystery to me. Hopefully someone here will have something constructive for you.

It sounds as though you are doing your own si joint manipulation. I do not know much about vax-d other than it is a commercial on tv all the time and the folks promoting it call it a miracle machine that cure back pain.

I do not know and I am not interested in trying that thing out. I have had the charite artificial lumbar disc implanted at l5/s1 and as far as something like that goes, the ligamets are streched really far out of place to get the intervertebral space open and accessible enough to do the laminectomy and the arthroplasty and then once the ligamet is released to the original position, it is fine. I do not believe that you can over stretch your spinal ligamets so that they do not keep stability of the spine.

There is a chance that the disc spaces have become more comprimised and so there is an instability at that point but that is unlikly as well.

If your docs do not seem concrned and you are not having pains that are disabling, and you are physically fit, I would think it is prudent to continue excersising and maintain your strength.