Hey sorry to hear of the separtion anxiety..I have the same problem but my Yorkie is 13 years old..never ever did that until 2 months ago...barks and spits up all over its terrible so I have to start crating him so he doesnt damage my home... i dont have any answers to but just wanted to say Hey and I am in the same boat you are
our poor babies, I feel so bad for them, they love us so much and it really bothers them when they are not with us.