Absolutely devastating for her, she must feel just horrendous knowing what’s in her future.
My mum was diagnosed last year at 56 with frontotemporal dementia, symptoms started at around about age 50 we think.
Mum was never forgetful - she just stopped caring about anything and anyone. Or she would say odd things - she would talk to others and say, ‘when I first met (her)’, her being me - but she was my mum, what did she mean when she first met me … over covid she stopped talking to my sister at all - she wasn’t sad in the slightest that she couldn’t see her, and the same with her own mum. Then she decided her mum was long since deceased and the person on the phone was an imposter/planted to confuse her. Eventually got more and more difficult and progressive with incontinence, binge eating, hallucinations, nighttime she’d be up emptying all the cupboards, and apathy to the point she would sit silently in the corner doing nothing at all.
Social work were involved for 6 years - laterally we got 1.5 hours of care a day - but I had to get the point of having had 7 nights zero sleep, exhausted I rang police and said either you take her away or I’ll end up harming us both. There was an advert on the TV for Alzheimer’s UK that demonstrates it perfectly that all you do is phone people pleading and pleading for help until you’re exhausted and unwell yourself.
Now in residential care unable to do a single thing for herself, can’t even stand up - it’s a good day if she smiles. And as others have said, when you’re younger often physically you’re still in good health - at the time of diagnosis at least my mum still had the physical strength and stamina of a 56 year old and with the confusion and paranoia she had that was a horrendous combination. She could pace for 15 miles a day non stop initially. They said you can live in that state of limbo for 10-15 years +.
I remember them telling me there’s often a genetic component when you’re diagnosed with any form of dementia younger, I haven’t gone for genetic testing and have since been told by my GP there’s no way the NHS would let me just now due to my own mental health, but I am very wary of having my own children as wouldn’t want to put them through this.