sorry about that - its a situation out of your control.
I know you have been staying over with your Mother for most days of the week # every week # looking after her - A task that many would not do.
My Parents ended up with Dementia but they were under the care of a Hospital and by that stage I doubt they could understand much.
I know from your e-mails that your Mother has some ' Good Days ' and really its best to focus on those days.
Just keep on doing what your doing.