Well here's my story: about a year ago I did something to my back. I live in the Texas outback so it could have been anything. For a week or two I suffered and then decided I should at least know what I hurt. I went to online videos from chiropractors, just to look at one of those skeleton things and some muscles. and there it was an exact explanation of what was causing my pain. It was my piraformis, whatever that is, I did the little simple stretchy moves and voila, pain (which was mind-numbingly excruciating) gone in a few days. So I still have never been to a chiropractor and have no idea what they can or can't do, but I'm grateful to Dr. Youtube! This is not medical advice, but they'd probably given me oxy for pain, I'd have gotten hooked and would be living in van by the river...