My puppy is dying! He issn't eating, drinking, peeing, or pooping, but he is throwing up! What should I do?

I would get him to the vet right away! There are emergency vet. Centers that can take him. Do not wait - go!

It sounds like it may be Parvo. Has your puppy been vaccinated against it? If not, you need to get him to a vet ASAP. If caught in time, he can be saved. Otherwise, you will need to put him down so he isn't suffering. I had a chihuahua puppy with Parvo that recovered fully. Parvo is highly contagious and can live for years so if you have any other pets that may have been exposed, have them checked promptly as well. Good Luck!