Her symptoms are still very mild but nowadays they can positively diagnose with new imaging techniques.
She already has had psychiatric issues and this seems to make things worse.
There are now some treatments that seem successful but there's a chance for serious side effects, the likelihood of which can be predicted via a genetic test. She had blood drawn for the genetic test yesterday, but I don't care to see results before next week, even if they're available. From what I remember of my father's decline from Alzheimer's, I think I'd rather, if it were me, die from the side effects than go down the path taken by my father.
At least she continues to trust me. I've never given her reason not to trust me.