Gidget and I wanted to thank everyone for their help! As usual, the "yorkie train" saves the day!
My husband videoed her attack and we took it in to the vet. The vet said that helped a great deal to see a whole attack in motion. He said it ruled out reversed sneeze. Now, he still was not sure what it was?! But he mentioned the possibilities mentioned on this thread - allergies, CT, infection.
He started Tussagon w the Clavamox w restricted activity. We are finally cough free!! (knock on wood!) He told us to watch if it happens again if we are around grass mowing.
Thanks so much YTer's!! You all are such a comfort when a pup is sick and mom is panicked!