Have you tried contacting the breeder and asking him or her what she was eating? I think out of desperation people get too excited and start trying too many things at once and freaking out the snakes. If it was me, I would leave them alone in their cage for a week. Don't go in it for anything make sure she has water and fresh bedding and just leave it for a whole week. Then after a week take a pretty warm frozen thawed rat pup entangle it about 5 inches from the front of the snake about 2 inches up from the ground. They can lose a lot of weight before you really have to worry but it's hard to say how bad they are already without a picture.