Hmm could be it. Though she does look like she has a small bulge. I've been paranoid about giving her anything as large as a small mouse. Her neck seems really skinny compared to my other two hatchlings. I haven't been able to get rat pinkies since her first feeding. I have a bunch on order that will be delivered in time for her next feeding though. I'm probably just being paranoid about the prey size, I know the rest of her body is big enough for a small mouse.