Given the symptoms your puppy is displaying it would be a good idea to have her back to the vet asap, if you are not comfortable with this vet then a second opinion is always an option. Good luck & keep us updated on your puppies condition.
Avoid biting when a simple growl will do
The Spirit Lives As Long As Someone Who Lives Remembers You - Navaho Saying
Vindication ~ For all those pets who became sick or lost their lives from tainted pet food