After falling off more times than I can count, and so much back pain that I couldn't stand for more than 15 minutes, couldn't bend over for more than about a minute, physically was incapable of sitting up straight while sitting normally, and couldn't sleep on anything harder than an air mattress, I finally learned that I'd totally screwed over my back. My pelvis was rotated forward (causing my hip bones to protrude from my front, which is odd), as well as being shifted to the right, my tailbone is misaligned, some vertebra in my mid-back are out (that stick out grossly), and a vertebra in my neck is out. Just before I started going to a chiropractor to get it all fixed, I was walking with a cane. But now I feel so much better. :)
I still have injuries, but most of them aren't too bad.