That's really interesting. I'd been saying to my husband and FIL for a while
that she was clearly having problems. Mostly it's related to process (things that require doing things in steps) and schedule and making decisions. But she's also forgotten all the relatives and her address and a ton of other stuff. Really sad to see. Also refusing to bathe, change her clothing, do laundry.
I think my husband just hasn't wanted to have the fight with her to get her to the doctor, but things are a bit more stable now so perhaps he can face it better now.