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  There are many people on this forum that have experienced those problems with their Yorkies.  I have no advice, but you have come to the right place and I'm sure you will get lots of help here, especially after you get a diagnosis.  Stay positive, these health problems, while serious, can be treated and/or managed.  The important thing is that you are taking the necessary steps to get little Tucker the help that he needs, and you are to be commended for that.  
				__________________ Life is merrier with a Yorkshire Terrier!  Jezebel    & Chuy     ... RIP:  Barkley      Loosie    & Sassy   |