He will eat a little bit but he has not been eating like he normal do. Then he started throwing up yesterday and he has beeen throwing up all night. He will stop for a little while then do it again. Its white like stuff I don't know what it is.I'm very wooried about him so can someone help me, and his throw up smells very bad.

Your puppy might have a fever or some sickness, my friends puppy had it a few months ago, all you need to do is take a visit to the vet and she will hopefully give your puppy some special food or medicine. Hopefully this helps. Good luck <3

Your puppies best bet is to get to the veterinarian. You can try to keep him hydrated in the mean time by syringe feeding him some pedialyte.
Puppies can very sick very quickly and if continuing to vomit can become dehydrated in a hurry.
Please get your pup in to be checked.
Let us know how it goes.