About six or seven years ago I was doing bicep curls of 50kg, and something twanged in my back - I couldn't move for the rest of the day.
Forgot about it til last year when I woke up and couldn't move my neck, was incredibly painful for about a week and stayed stiff for about 4 weeks. Eventually went away.
Came back on Xmas day, same thing again - it was getting better, then yesterday I dabbed near a tree, and my foot slipped on the snow, I fell about 1 inch sideways onto my shoulder on the tree - and TWANG! - did my back in again.
Neck stiff, back sore, tingly arm and fingers. I think it's time for a doctor's visit
I hope she's hot.