Studies show that sleep can degrade the memory of immediate details, it would have been better to question her before her operation if possible.

[He really is disappointed, John's been getting better at learning how to deduce and ask questions, but this is a big backslide. Perhaps it's because of his exhaustion and the pain he's still in?]

I doubt she'll be awake for a while yet, it might be for the best to check in yourself and get sorted. You're obviously not functioning at your best.