Oh dear ...yes PLEASE as other have said ...make an appointment NOW for the doctor ....if he is difficult and doesn't want to go, say it is for you and you would like him to accompany you (you could write in confidence to the doctor first to explain the things you have written above so that the doctor knows what he/she is looking for) ...in my case I am lucky, as I always accompany my husband to the doctor and explain his problems
My husband is now 84 and had always been active (I mean as in climbing on the roof, diy, etc etc all the time until around a year ago when he got progressivly more difficult, angry all the time, criticising everything,disagreeing with everything, told me to go and jump in the river (I was tempted ! it became incresingly difficult not to) but I took him to the doc//he had already had two TIA,s vasculaire disease, replacement arteries in his legs, and a carotedectomy ,,,,,all of which eventually as caused vasculaire dementia followed by a diagnosis of Parkinsons disease. As we live in rural France we have no family or friends, and he has said he will refuse to go to any respite care, as the doc suggested, for a week now and then because he 'can't speak French'. Every day becomes a battle ,,,,he wants to climb ladders to cut trees (he has no balance anymore and has difficlty walking ...doc gave him a rollator ..refuses to use it !) wants to use electrical woodworking machinery ,,,,,when I say NO he says he will do what he wants and I can shut up or go away......
I WISH he would sit in a chair ....this morning he wanted to go for a walk to stretch his muscles ...so I dropped what I was doingm got in the car and took him to a local country park ,,,get out of the car ,,,opened his door got his stick ...held it out and went to help him out ,,,DONT WANT TO GO he said ......reminded him he had asked me to take him ...WANT TO GET A DRINK AND GO HOME he said .......I bang my head on the wall ....then he wanted to go to the DIY shop and spend more money on screwsm sandpaper, etc etc ...he is planning to climb onto the shed roof which he says needs a repair ! I have already arranged for someone to come and re paint the shed, repair the door which sticks, et et cbut he says it cannot wait ! I totally despair !
He has one daughter aged 56 who lives in the UK and never telephones or visits..she says she is glad I am here to look after him !
Sorry about the long tale ....but just to reiterate, you MUST get him to the doc ...it may be nothing serious, but you will not know unless you go and see.
As for some one who said you shouldn't crticise him, he may be ill ...this is all very well ...if you have someone who is ill and needs care, but is pleasant and good to get on with, it must be a whole lot easier I would love to leave when I am on the receiving end of the abuse and throwing things and swearing at me, as I have no life whatever now (I shall be 70 later this year)...I would love him to come on holiday somewhere, but he refuses ...or go to the beach for a walk and a drink ...he refuses all he wants to do is to put his life in constant danger ...what can I do > I am afraid one day when I come home (I only go as far as the village shop) he will have fallen off a ladder and broken his neck ....I threatened to give all the ladders away ....
PLEASE go and at least find out....living in the UK you could probably access some support if he has any progressive illness ...but hopefully it may be depression or a treatable problem and he will feel better after getting some help and or medication or therapy !
Such good luck 