That's so sad that your mum recognises somewhere that she isn't going to get better
@Bikerbeth . In the late early stages when I knew things were awry but mum was still coping pretty well at home she'd sometimes complain about not being able to do things she thought she should. It was tricky to try and re-assure her as if I'd mentioned dementia she'd have been cross with me. Her GP explained it best when she started complaining about her shoulder when we were there to discuss her possible dementia. By that time the GP was well aware of her cognitive difficulties and he said that just like her shoulder was wearing out as she got older, so was her brain. As she was ninety that was an explanation she more or less accepted, though she would deny the consequences of a worn out brain even now.
I have a few (a very few) tomatoes ripening. The last few years when I've gone to eat them they've been rotten or split. Hope that doesn't happen this year.