We just went through 2 months of this with Binky. Continual throwing up while still acting hungry. He probably has IBD and the vet has prescribed Prilosec (yes, the OTC people medication). 1/4 tablet once a day, small helpings of food, usually half i/d and half regular, plus dry i/d. So far, so good. Only one episode of vomiting, but that may have been because he was so hungry he gorged his food.

Keeping fingers crossed for Luna. I know this is extremely frustrating, but hang in there and take it very slowly. And let us know how she's doing...........