Hi, hope that by now your furkid is getting better
Our Kenzie had the same sympthoms almost a week ago.
She kept vomiting everything she ate and drank, it started on tuesday night and kept going for the next 24 hrs.
By the 3rd time she threw up we took her to the vet.
He told us she had a bit of a fever, its a tummy bug, so he gave her an antibiotic shot, he also gave her a med to protect her tummy and he said it'll start working in the next 30 mins, and thank God, it did.
Kenzie had to drink Pedialyte for the next 12hrs, no food cause she couldnt hold it in.
By 8am, next day, Kenzie was like 60% back to her usual mischievous self.
The vet told us he gave her the AB shot cause there's no time to waste in these cases, cause these little ones dehydrate super fast.
IMHO, I suggest you to take your little one to the vet ASAP, just to be sure its not a serious thing, you never know with these bugs floating around.