Sorry, forgot a few responses:
No, as far as I know the vet has not run any exams, at least he didn't tell me he had and neither did they - and no, I didn't tell them to use any supplement because they didn't call me back so I assumed wrongly that all was going well. I wish now that I had called them because I definitely would have told them to get that baby to the vet that day. And the puppy wasn't eating, I think that's why this is happening to begin with. I just wish so badly that I had called them back