Thank You Karla ....I took Lucy to the vet and he basically said I would need blood work and some other test to see...if I can get video and bring her if this happens again. I haven't seen Lucy doing again and she's like a shadow around me...loves her. I'll keep you posted on her progress.
Welcome---Be ready & the next time it happens, try to video it to show your Vet......There are too many things this could be that I hesitate to speculate on it......
My first thought is simple "Reverse Sneeze", but yours are lasting way too long!
Then I thought about Kennel Cough, which is a possibility....
I personally wouldn't wait; just in case it's something serious that needs to be treated......Good luck & let us know what you find out......Karla