I am a former elder caregiver & recognize the signs and symptoms of dementia.
My mother is exhibiting many of these signs. I'm sure, without a doubt, dementia and/or Alzheimer's is setting in.
I have not pointed this out to her because she is...for the most part...clear-thinking 'in the moment' and could understand what is happening to her.
I don't need a formal diagnosis in terms of handling her affairs in the future - there's a DPOA in place - but I'm wondering if an actual diagnosis would somehow be beneficial?
I've dealt with this issue with clients - it's never hit so close to home though and this is a whole new ballgame.
Best wishes to you and your mom.