Stress-induced vomiting?

[lizbud]

Sounds like it's not stress induced, but a real illness he has developed.
I'd have a Vet check him out more throughly. Good luck with him.

[borzoimom]

I am worried about dehydration also.. as well as you added a dog into your house that could have a virus that... well.. Some times alot of activity will make the dogs throw up- but the depression I read is not the same thing... Add pedialyte regular no flavor to the dogs water, and run the dog by the vet.

[kidzdoc]

Thanks, everyone, for the advice. To the vet he goes!