Good luck @MittensTheKittens
Last night I came across the copy of the letter I wrote to DMs GP last year.
Now if what you want is a cure for ageing and dementia then yes, HCPs are useless. It won't happen - as we all know!
So I think the key is to pitch appropriately. GPs can do the initial screening, organise tests and referrals, but I think just as important is that in E+W (prob Scotland too), GP surgeries will act as a referral hub for many other HCPs.
After my mum was chucked way too soon out of hospital post-heart-attack, a GP from the surgery phoned her quite quickly. But they didn't know her and weren't aware that she didn't hear half of what they said on the phone but made polite noises and gave the impression that all was fine.
My letter spelled out other issues - the deafness, the falls that she'd not told them off, the loss of vision that was being overlooked, the general appalling conditions in which she lived, the fact that she was so stubborn that I couldn't be sure whether her denial was just her personality or loss of understanding of the situation.
Within a short space of time she had visits from the crisis SW team who organised cleaners (which she tolerated until learning she had to pay, then she cancelled them!); physios who supplied walking aids and balance exercises; OTs who organised hand rails to go through the front door - lots of little things that I couldn't have done myself, but which made a big difference.
She's still elderly, frail, deaf, stubborn and nearly blind of course! But she has rehab'd from the heart attack pretty well, is having far fewer falls, and is now known to the SW team for when the next crisis hits.