Small Update: The vet finally called. The test results all came back normal and Biscuit is acting like his usual self. He threw up twice yesterday (nothing substantial) but I think it's more the result of a diet change rather than a new symptom. He hasn't thrown up today and is playing, drinking, and eating (and begging for more, as always!)
He'll be on I/D until the vet tells us he can go back to his regular food. The vet also wants to see him after a few days to check how he's doing. Hopefully things will continue to improve. I just want to thank everyone again for giving me advice and reassuring me
