RE: dog died
Sorry for the loss Buddy, but I was wondering if your pup had all of it's shots. This sounds like Parvo, a friend of mine had a mutt that never got it's shots and it suffered from the same symptoms as your dog, but the vet was able to save the dog after my friend spent about $1200.00. If you get another dog in the future you need to always monitor it's behavior and at first sign of something out of the ordinary, the pup needs to go to the vet. When my friend's dog started getting sick, the vet said if it stops eating and starts throwing up then it is too late to cure Parvo. So it is crutial to let the vet knowif your pup's behavior changes.
Also I hope losing your dog doesn't prevent you from getting another one, just remember what you have learned from this. Everybody needs a good dog.
Good Luck,
T.R.