Wheezing isn't a normal sound to be coming from a dog. He could have a respiratory tract infection or bordetella virus. I'd get him to the vet as soon as you can for a good check-up just to make sure it's nothing serious. And if he does have a respiratory infection, you can treat it now before it gets too serious. I hope he's okay. Good Luck with your new baby
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~Magnifique Yorkies~
Purchasing from backyard breeders, pet shops, and puppymills perpetuates the suffering of other dogs.
Educate yourself and buy from reputable breeders or rescue.