I'm no dog therapist, but maybe she feels a bit isolated being confined to a certain area. The breeder I used for stud services said she gets a bassinet and lets the puppies sleep in that beside her bed (since mama normally sleeps with them). That way mama can still be with the family. I plan on getting one myself for Annie Belle since she sleeps with us and is very attached to me. My dog has become very protective of her belly area (she is six weeks), so she may wind up being that way with her pups...I was kind of that way with my first born...didn't want to share him with anyone!

Hopefully some more experienced breeders have some advice for you...that was just my two cents.