I just slipped and fell on ice that looked like just a wet sidewalk, came down on my knee, and now all my muscles are aching as though I strained them. Strangely, my knee doesn't hurt apart from the actual bruise, which is a little swollen but it seems to be just in the skin. So why do my shoulders and arm muscles hurt? Could it be that since I was effing bored out of my mind yesterday, I washed all of the curtains and bedding in the house?

While lying on the sidewalk waiting to feel if anything hurt, my dog was looking at me like this: