when I moved last August, my Tony didn't want to come out of the carrier for several hours! I was worried, but I just gave him some space and some time, and basically left him alone for a little bit. he eventually came out. bunnies can be very scared sometimes!! you might want to make sure there are hiding places in the room that she's in, and just leave her alone (even leave the room) in the carrier in there to let her come out at her own pace. maybe she's never really been out of a cage, since she's so overweight, and the combination of a new home and being expected to run around is too much for her.