I have a 10 week old dalmatian and was fine when I brought him home but now he won't eat, he is drinking a lot but he also has diahorea

I would get him to your vet ASAP! There are too many cases of parvo in young dogs, that even if caught early can kill your pup, and it moves fast! Better safe than sorry. I would call your vet first thing in the morning, and rule out parvo to begin with!

Sounds like worms to me. Parvo is also a possabilty, but puppys tend to have little tummies full of very happy worms. Contact you vet as soon as possible. You don't want your furbaby to dehydrate