I was reading in another thread that they think your baby may have kidney failure...
If this is the case, her inappetance is likely due to this...If she is having kidney problems, she probably has a buildup of toxins in her blood which is causing her to not want to eat. Azodyl is a supplement that has been extremely helpful in cases like these. Basically, Azodyl slows down the toxic buildup in the blood and helps prevent further damage to the kidneys. Once the toxic buildup in the blood lessens, your baby will likely have more of an appetite.
What food do you have her on? There is a Renal prescription diet by Royal Canin that might be appropriate for her.
Epatikin is a supplement that helps reduce phosphorus levels. These two supplements in conjunction help those with kidney problems.
Vetoquinol Azodyl™