I haven't gotten my baby as yet (few more weeks!) but my best friend has a yorkie who used to have MAJOR sep. anxiety. What she did to help the situation was never getting excited (I know it is soo hard) when she enters the room and see's Lucy, or never makes a big deal when she leaves. That started helping after awhile even though it is so hard to resist Lucy's precious little face! Another thing she did was if she wouldn't be home for awhile, she'd hire a credible dog walker or leave her at a doggy day care-not every day because these things can get very expensive-for a few hours. The more socialable Lucy became, the less anxiety she felt when she was alone all day. I know this could probably have the reverse effect but everything is worth a try! Good luck