Hi, new cat owner here! We have 2 5 month old kittens. We’ve had them 6 weeks. They had a trip to the vets yesterday for a pre neuter check. They were upset in the car on the way there and back but seemed to be ok once we were home. However this morning the boy kitten is much quieter and off his food. I’ve found some yellow bile at the side of his food bowl and looks like one of them has had loose stools. They have both slept a lot of the day and eating less than normal. Does this sound like they are just upset from the vets visit or could be more? We obviously will call the vet if we are still concerned tomorrow. Thanks