HELP PLEASE!!! I think my king has brain damage

[chairman]

Many years ago my mom had a male eastern chain kingsnake that could not catch live prey. This was back before the internet when "everyone" fed live and offering f/t or prekilled was considered cruel because it deprived snakes of "the hunt." Anyway, back then it was just an annoyance because I had to dangle his mice by their tails so he could grab them. But our understanding is that his issue was a result of a breeding accident in which he escaped with his life but not fully "there" anymore.

Any chance that your female had a breeding incident that deprived her of oxygen for a bit?

Or, as others have said, could just be an odd but normal behavior. Might recommend changing your feeding strategy, make her stalk the mouse a bit so her body is completely out of the way.