This might be a bit long so apologies.
I'm in my thirties, DF 70, DM 64. DF had two heart attacks in his 50s marking a significant change in personality. Things have really been up and down since that time.
He smoked until the day he had the first heart attack, and despite completely quitting inexplicably took it up again a few years ago.
He has also always been a heavy drinker. I would describe him as a functional alcoholic, always able to work etc but could never say no to a drink, and still can't, although his intake is much more moderate now.
Some years ago (probably 4-5) my DM convinced him to see the GP due to anixety, paranoia, memory issues etc but he refused to disclose what was said. The GP obviously could not break confidentiality but advised my mum not to expect things to improve in a hint hint kindof way.
DF has refused any further communication with a doctor however his behaviour is in decline. His personal hygiene is low, he won't shower unless forced by DM. He sleeps a lot but not well, often waking very early and then taking naps. He constantly refers to my toddler DD by my name and refers to DM as her mum when we're all together and doesn't know he's doing it. He has also referred to me as DM and seemed very confused when pointed out I was not her but brushed it off.
He hates driving now and can't remember routes, even ones he is very familiar with but refuses to let my mum drive if they are together. His driving is also very aggressive and erratic.
He seems to take delight in saying inappropriate, crude and childish things and doesn't get why people don't join in.
He gets very panicky about things that other people are doing even if they don't involve him, worrying about people's travel plans, etc. He is also completely unmotivated to do anything except sit at home and watch TV or fiddle on the computer.
My DM is completely broken by it and has no idea what she can do as if he won't see someone she feels she can't know if there is a diagnosis available or if she's just living with someone who is intentionally or unintentionally making her life miserable.
I guess I'm not sure what I'm asking except what can one do if someone clearly is in decline and won't get a diagnosis or if they have one won't tell anyone or get any help?
Thank you.