Underweight Snake refusing to eat.

[AK907]

So far in october she has eaten 5 small mice and 1 medium mouse.

So she has eaten 5 small adult and 1 medium adult mouse so far in October? Small prey items, but that is quite a bit of food for her size for the past two weeks. She might be full. Plus going into shed might have her put off feed too. As people have said, your 3 day feeding schedule might be stressing her too much since she is refusing. I would wait for her to shed before offering again. She should be good and hungry by then.