I am not experienced with Yorkies, but I have a few suggestions. First off, you NEVER go to a dog when it is barking for attention. Don't yell at it, don't let it out. You do the best you can to tolerate the barking. Hopefully she will get it that the barking doesn't lead to your attention. Another thing is during the day you can encourage her to go in her crate with toys, treats, etc so that she thinks it is a good place to go. I am not sure what changed her attitude so suddenly, but I hope you can fix it.
Vanessa |