If you got him from PAWS, they gave you a sheet with pertinent contact info for local pet services. There should be a number for an emergency animal care facility
Take him to a veterinarian.
Vet
There are multiple 24 hour vets in the city and suburbs. Juat google 24 hour vet near me and call the number listed. They will help you. Vomiting is something you should get looked at asap.
Definitely go to a vet
Thanks! Your answer is awaiting moderation.