I might suggest she get tested for dementia except I know she'll lose her temper and refuse. But also, I just don't think it's dementia. She does all kinds of activities without any problem--reading groups, art, religious study stuff, etc. Her memory and performance there all seem fine. Also, she's ALWAYS been like this, to a point. My father and I both feel like she actively tries to be difficult. Also, I think if I were really nasty to her and told her to do it herself and insulted her for being stupid that she can't even do a COVID kit on her own--she would manage it fine probably and then sort of attack me back that I'm a horrible person but fine she doesn't need me and I'll be sad one day when she's dead and I no longer have the chance to help her. So I do think there's an element of manipulation here, but I don't think she's conscious of it... But yeah...at the same time, today seemed abnormal... I really don't know.

Oh also--she's not even 70 and her family has no history of dementia. All her siblings are much older than her and none of them have any signs.