I've got a 8 month old female BP, she's in great shape and she seems to be very happy, very friendly. In the 6 months I've had her she has never refused a meal, accept for tonight. Its only been the last few feedings that she has been taking rats, no problems changing from mice. She's always been a great eater, what could have changed that its a no go tonight ? Should I wait till next feeding day to try again or in a couple of days ?