I have had absolutely no experience in what you are about to go thru, so insight, no. Good wishes and prayers though I can offer. Please let us know how he does tomorrow. And if there is a problem, my best friend went thru this with her Toy Fox Terrier recently and I can guarantee you that she will talk you thru it- she is a wonderful person, she just owns littles. ( I am working on them getting a Great Dane, just give me some more time) Feel free to PM me and I will immediatly put you in touch with her- she is on email all day long and would be happy to help.