I am so sorry you and your Candy are going through this. I will say that for her to live to be 14 with CT is a feat in and of itself.
I lost a CT pup on Christmas eve this past year. He was very sick in his last six months and had an enlarged heart.
This thread might give you some thoughts on this awful condition:
http://www.yorkietalk.com/forums/sic...g-trachea.html