Have you.

Ever hurt your back rolling?
How long did it take to feel better? Phone Post

yes, i have hurt my back doing lots of things. To be honest mine never feels 100 percent anymore. I think that depends on your age and what you actually did to hurt it? Pulled muscle, pinched nerve or really knocked something out of wack. My back is jacked the first 2-3 hours every morning but usually gets better as the day progresses.

Foam roller bro.
It works wonders Phone Post

This might be a bad idea to some but for ME after a back tweak I roll a few days with people that aren't to much bigger, stronger, or significantly better to figure out exactly what movements and positions bother it. Then take that information to a good chiropractor. After the adjustment I stay off the mat for a few days. Phone Post