I have a 2 1/2 yr old male yorkie and I've been noticing the past 2 days has been drooling excessively. I noticed this morning his hair around his mouth was soaked from drool and the bed had a big wet spot where his mouth was laying. I did see he thre up a little and it was yellow. He's still very playful, I called my vet and all 4 of their locations but they are all booked until tomorrow. Has anyone had this issue with their yorkie? I'm worried to death but can't really afford an emergency vet bill

but I feel so bad for my little guy! HELP!!!