2200 + F-15 hours, 2 back surgeries here. First was not related as far as I know to Gs...it was a tumor in the spinal column. Second was the class bulging/herniated disc in L4/L5, and yeah, I'll give about 95% of that one to McAir.

PM if you'd like. Big picture is I found dropping 25-30 pounds and running and biking have kept me feeling better. Worst thing I do is this--sit on computer and type. Next worse is flying MD-11. Movement=relief for me....YMMV. I think we wear the same ugly tie so feel free to look me up in VIPS...