Thank you so much for the advise. Kingston is feeling alot better now. Thank you so much!!
You're not being paranoid, you're being sensible. You are right "better safe than sorry" If a young dog like him is refusing food and throwing up more than once, then there is something wrong.
It might not be anything too serious, but take him to the vet anyway. It is always worth it. Hopefully all that's wrong is a bit of a tummy upset, and he'll be better soon I hope.