justdogs
Posted : 12/17/2009 4:40:09 AM
Maybe she is missing something or someone? My brother because he is so busy hired someone to take care of his dogs. The dogs have became too attached to their nanny, that everytime she takes a vacation, they get really really sad like they do not eat but just lay around like they've lost their best friend. When their nanny comes back, they are so excited and keep jumping around her and licking her feet.
In your case it could be just psychological, take a look these tips: Dog Tip: Sudden Behavior Changes
And then again, it could be something else. Have you read this?
THYROID CAN ALTER BEHAVIOR