Not trying to be rude or nasty at all but sometimes a little common sense goes a long way. Digesting food would probably take even more energy than she has. Allow her time to get her shots, sleep and recover before trying something that is taking up the little bit of energy she has by striking out of stress. She may not be showing interest in the Mouse as food but as something in her enclosure that she doesn't want in there. After all she had a Rodent disfigure her face. After a experience like that I would strike at a mouse/rat too.