Conflicted Feelings

So, we sit here in a seemingly empty house. We miss Lizzy very much, but I know keeping her at the hospital was the right thing to do. I didn't like the way she looked today at all and would have been very scared to keep her at home. Her movements were tentative at best, almost looking painful. Her eyes appeared blood shot and she hung her head lower than normal. Watching her walk back with the Vet Tech, it struck me how really skinny she has gotten. Lizzy was never a wide dog, but she looked gaunt. The weigh-in showed she'd lost close to 4 lbs (or about 13% of her total weight).
I'm not really sure what I want to have happen tomorrow. Do I hope she perks up tonight after some IVs? She'd be much better, but that wouldn't explain how she got into this condition in the first place. Do I hope the test for Addison Disease comes back positive so we know what it is? It means a lifetime of medication, but it answers a lot of questions.
Finally, I want to thank you all for the prayers and well wishes. It does a lot to lift the spirit.