A grey day

Why is it so hard to get motivated to do something on a grey day? I hardly felt like walking the dog, much less getting myself up and out or even putting in my contact lenses. Instead I finished a good book, washed the comforter cover (Yay! It fits in the new small washer AND dryer!) ate some leftover potato soup with grated cheese sprinkled on top, and baked banana muffins for my choir Dunava's rehearsal tonight. I seem constitutionally unable to take a nap. And yet I am not sick, don't have any pain. I just can't seem to get started today.