Does it look like she ever got it down? It sounds more like she just spit it back out and not regurged it. She might have just been stressed out. Instead of giving her med rats give her small rats, two if you have too. Try again next week and I'm pretty sure that she will eat that one if she kills it, Ive had balls randomly stop eating before and not be sick, it just happens. Next time she starts to swallow id leave the room and turn the lights off.

- Matt