Mason is 6lbs and 1yrs old with no previous health issues or conditions. The last few days he has thrown up once a day a yellowish colored bile. He only eats Innova Evo and drinks only water with the occasional Bully stick for a chew treat. He has gone outside and eaten grass other then that nothing else is different. We have no pesticides or anything on our lawn.
I just cant understand why he is throwing up. He has been eating and drinking ok and still wants to play. I called my vets office and they said I could bring him in tomorrow night if Id like but they were not very concerned. Any ideas?