In the two or three days you have had the puppy, you really want to track their eating and drinking amounts, peeing n pooing, and note the frequency, the coloration and if any odor is present.
Note how your pup walks around your house. Lots of bunny hopping? Is he/she shy or intrepid explorer.
Does your puppy shiver a lot, head press, are they generally energetic or lethargic. Health puppies have short bursts of energy and will flop down for their nap when tired.
Do they sleep through the night (haha) and great if they do
In the examination I told you about from the vet - this too you should do - in fact weekly or every two weeks. You want to be really familiar with your dogs structure how their bones and muscles feel, plus this is training the puppy to something called the medical touch. Don't forget the ears and teeth too!
Make a note of anything that seems weird or odd to you!.
Ask the vet about their Spay and neuter policy and experience with toy breeds. What are the standard protocols they use.
Ask the vet about splitting up shots for your Yorkie and most especially the Rabies one.