tink-n-kody ... I apologize ... just saw your post! I am "old and slow" and sometimes find it difficult to keep up!!
Welcome to Yorkietalk! The only time I have had a problem with Toto coughing & sneezing our vet could find nothing wrong except that we had just had new carpet installed. She gave her medicine and we had to clean the carpet and her cough cleared up! She also "reverse sneezes" when she plays hard which is pretty common in Yorkies! Don't know if that helps but that's the only problem like this that we have had.
I noticed you are from Colorado?! We are in Grand Junction because of my husband's job and will be there 2-5 years! Wish I could find someone in GJ with a yorkie baby that Toto could play with. She has never had an opportunity to socialize with other little ones!