I asked my vet awhile back about this because Duke started it, and it kept getting worse. The vet told me that it is common with Yorkies and there is research going on about it. Nothing has been confimed with it, but he said it isn't anything to be really worried about.
I usually just rub Dukes neck and try to calm him down and it goes away pretty fast.
__________________ Kati,Duke,and Lucie |