Awwwwwwwwww my Mandy.
I'm sorry you hurt yourself. It isn't what your silly (and I mean this in the most kindest way lol) mind is telling you it is.
I have literally hurt my back from dusting a piece of furniture before..and that one scared me bad. It's so easy to pull something in that area, and you know we're no spring chickens anymore
You just rest hun, and make sure to take something for the swelling. Rest your mind and your back!!!!