Sorry your baby isn't feeling well. Sounds like she's been through a lot.
What Canidae are you feeding her? The original formula, the grain free formula, and the beef and fish formula all contain ethoxyquin in it.
The lamb and rice and chicken and rice formula don't contain fish meal but are preserved with mixed tocopherols which could be anything.
I use to feed Canidae but I noticed they were throwing up every so often and had loose bowels. And then I found out it contained ethoxyquin. You see they don't have to put ethoxyquin in the ingredient list because it wasn't added at their facility as it was added by the fish meal supplies prior to ending up at their facility.
Here is a thread you will want to check out, it gives you an idea of which foods are safe and which aren't...
http://www.yorkietalk.com/forums/yor...thoxyquin.html
I switched to Life's Abundance which does not contain ethoxyquin and they have been doing a 100% better. You can't buy it at the store but the auto shipping makes it easy and you know you are feeding a good food, you might want to check into it.