I just bent over and now I can't move!!!!

Has this ever happened to you or maybe someone you know? One minute everything is ticking along fine, the next minute you are on the floor or bent in some awkward position, clutching your back crying out in pain something like 'MY BACK' or 'I CAN'T MOVE'. It seems so innocent and so out of the blue. All you did was simply do something that you've done hundreds of times before, except this time it has ended up with a very different outcome. What happened?

Back painBev Bishop24 September 2017back pain, lower back pain, disc pain, I can't stand up