That sucks buddy. feel your pain. Shovelling can be a major bitch on your back. I threw out my back last summer tightening a clamp on a boring machine and could hardly breath or stand. Turned out that I basically popped two ribs out. That week sucked. I was on some pretty strong pain meds and muscle relaxants. I went to the Chiro for about 3 weeks after it happened. Still can feel em tryin to pop when Im tightening something or shovelling.
But yeah, good mix of relaxation, drugs, get some adjustments, and stretch like a mof! You be garin'er again soon firgarin!