Woah!!! Just hold on, don't panic - please!
He sounds like he is stressed.
When you say he forgets things, does he suddenly think "d'oh, i forgot the X" or does he know he has forgotten something but doesn't know what?
The walking and talking thing is quite common (i do this
) and he could have been mid dream when he woke.
Does he work? what does he do for a living? Are there problems, is he stressed? Anxiety can produce some pretty weird smptoms.
Did his parents have alzheimers at a young age? otherwise you cannot be sure that the dementia was actually caused by actualy alzheimers. This is a genetic test that can be done for familial early onset alzheimers im sure.
Yes, id be alerted, but i wouldnt be jumping to conclusions just yet.
My Dad had dementia, it was vascular dementia - it came on slowly but it wasn't as simple as just forgetting things. He had done that all his life! Me too, im the most absent minded person i know
But he started to not make sense, he would come to my houe and talk about another woman who lived in his house, who didn't like him. I knew there was something wrong, but i stuck my head in the sand, but it was confirmed for me when the poor bastard got lost going from my house to his and came back in tears and asked my DP to take him home - he literally lived no more than 200 yards away :(
For me, its not making sense rather than forgetting things. Also everyone with dementia will differ so go with your gut and get him checked out, but remember, he will be scared and not want to admit it. Try and persuade him that there are very sucessful treatments that can significantly improve his health and stop the desease from progressing for quite some time. That is even IF he has it, which i pray he doesnt.