I'm posting this now, because I don't think I'll be able to later on tonight.
Revy's enzymes and B12 injections are not working anymore. Her liver is failing, presumably due to complications from EPI and chronic malnutrition. We've made the agonizing decision to end her suffering tonight.
She is three years old. I did everything right - went to a great breeder, got a puppy with a fantastic pedigree... but sometimes things like this just happen. It's nobody's fault... it just sucks.
I really wish this wasn't the end to her story.