I empathize with you, NY. Stay safe and baby your back. My shoulders and arms hurt every time I shovel, no matter what I am doing at the gym. I don't shovel often, as we have a giant snowblower and a plow guy who does our access driveway. But, last Monday we had about 4 inches of fluffy snow, DH was away, so I shoveled almost the whole driveway. I counted it as 2 hours of exercise.
I've seen the pictures of DC and it looks like it's getting dangerous.