Another downside about feeding live is that once a snake has been injured by a rodent, they might get even MORE hesitant to feed. Some apparently associate
the color of the one that bit them & thereafter refuse all similar rodents. It may seem like a lot of work to teach a ball python* to eat pre-killed prey, but that's
easy compared to "picking up the pieces" from a bad bite, not to mention less expensive.
*If you don't want the hassle of teaching a BP to take f/t prey, you might also consider the many OTHER kinds of snakes that make great pets and EASILY take f/t.
I really do hope you get this snake seen quickly by a competent herp vet, & that she makes a good recovery.