Bob, my wife has some of the same symptoms from time to time. And she also has a great deal of difficulty trying to express what's happening. I do find that taking care of her now is much like taking care of a 1 1/2 to 2 year old. Including all that involves.
She really can't help dress or undress herself, at all she can't move her own body, and much of the time she really can't tell me what's wrong when something is bothering her. It can be very frustrating. I think this is a part of life that nobody tells you about until you actually begin to experience it. And then you discover there's a whole lot of people out there or having the same experience.
Sometimes I try to imagine what it must be like to wake up every morning and not be sure where you are, how you got there, and who the people are that are standing beside your bed. That has to be incredibly scary. We've been married 18 years and yet she has no memory of any of those years and frequently doesn't know who I am. She seems to still remember her sons and her daughter, but frequently doesn't remember her ex-husband and they were married for 45 years.
Even the house that we have lived in since the day we got married is strange to her. She designed the addition we put on this house in 2009 and yet she constantly feels like this is not her house. And she doesn't know how she got here.
In a way I suppose it's not any wonder that they sometimes sit and cry.