32 year old male, no medical conditions, no medications.
I hurt my lower back by tweaking it; I was laying on my back and caught a slow falling object, maybe 80 lbs (a door) and it tweaked my back the wrong way. I went to a chiropractor and he fixed me up after two sessions but told me to take it easy for a few weeks.
Well… I was feeling good so did some manual labor, and while sitting on the toilet the next morning… man– pain. The pain is not as bad as it was… but now I am hunched over and it seems that my ab muscles have changed so it looks like I have a gut. Can’t quite stand up straight… and when I finally do, if I have to sit down, i start from square one again.