What else can I do?

Woke up pretty early today for a day that I could have slept in....Ollie's food that I had ordered special for him...he doesn't like it :( So I stopped at work and picked up the urinary SO canned food that he has been eating and likes.  Got some Starbucks, mmmm yummy!  Then I cleaned my room thoroughly, cleaned the cat boxes, vacuumed upstairs and downstairs, cleaned the kitchen, cleaned the living room, and cleaned the bathroom.  I think I definitely over did it today.  My back hurts worse than ever.  I emailed my doctor, she'll get back to me on Monday, hopefully she'll figure something else out.  I went to B & N with Donna to get myself a new Nook cover.  Then we went to the grocery store to get things for dinner.  I stopped at Walgreen's to pick up a prescription and bought this all around thing that I can ice my back with.....I hope it freezes fast!  So I tricked Ollie and put one can of the food he doesn't like and mixed a spoonful of the stuff he does like and he ate it...yay!  I think  I need some extra TLC because my back hurts so bad.  I haven't been able to go to the gym but I can barely get in and out of the car with the way my back is.  To compensate for that, I've been eating less...yay me!  I don't know what else I can do to help my back :(