When my mother started acting strange, we took her to the hospital. A doctor examined her and came out to tell me that she was fine, in fact, he said, she’s looking forward to her trip to Boston to meet with her lawyer about her husband’s business.
I told him that the trip in question took place in 1955.
He went back for a deeper look and then recommended a nursing home. She was in a whole other world.
The odd thing was that a year later she suddenly snapped out of it, and recognized us again. She was fine for another ten years until she died. Weird.