Here's some vids:
http://www.yorkietalk.com/forums/yor...d-trachea.html
Has she seen a vet for this? They take x-rays to see if there's a collapsing trachea. I've read that it's also sometimes difficult to catch on x-ray bc it might not happen at that time...My vet rubs the throat & if there's no honking sound or episode, most likely it's not collapsing or collapsed trachea but reverse sneezing.