Oh yes, I remember it well. My dad went through a stage, for probably a couple of years, when he would stop every mother with a child in a pushchair and talk to the baby or child. I would take my dad out to town or for a pint at the pub and I would find myself apologising all the time. Luckily people were very good about it and when I explained that dad had Alzheimer's they were all lovely.
I asked dad's consultant about this and he said that they think it is that some people with Alzheimer's remember their children when they were young, and that they think the children are us!
A lot of female sufferers also like to carry dolls around and they look after them as if they were real babies. It gives them a lot of comfort.
My dad has passed that stage now, he is a nursing home, but although I worried when he was going through that stage, I would love that time back now. It was only last year, but it seems like a lifetime ago.
All the best and I hope things get better. Take care, Rosie xx