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this is Dr. Levinson
this sounds pretty serious. vomiting 12x in an hr and won't keep water down and now vomiting up bile.
I know you may not want to hear this, but I'd really urge you to take him to the emergency vet hospital for some x-rays to rule out a gi foreign body. If this is what is going on, where he ate something that is now stuck you'll be looking at an emergency intestinal surgery and this could be something he can die from.
If it's just gastritis from something rotten that he ate or a gi parasite or other that may be able to be treated medically without surgery but that dog needs some x=rays pronto! He most likely will need to be hospitalized on IV fluids as anything you try to give to him orally right now he will only vomit up.
I hope this helps and I hope only the best for you and Chimo.
I have to go off line for a bit, but please leave me a message if you want to and I'll try to get back to you.