Doesn't sound like your manager really understands what you've been through. There no predicting, for pete's sake!

One thing for sure, though. You'll be better when you come through on the other side... in your own time!
There's no guarantee that she'll read anything you give her. Maybe if you just give her a sentence or two of information when she asks.
Good luck! Hang in there; take care of YOU and don't worry about what others think.
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.