A few days ago my husband and I were visiting my mother at her NH - mom is almost 89 with moderate dementia and a variety of ailments all considered mild. She does have sever bone on bone arthritis in one hip for which she takes Vicodin 3x daily at six hour intervals. A few days ago my husband and I were visiting her - she and I had about a 15 minute discussion on a more complex subject and she participated intelligently. I got up and told her I was going to get her some fresh ice water - as I left the room I heard her ask my husband if I was going out to feed the horses. It hit me she thought I was her sister who lived most her life alone on a small stump farm - she always had two horses. When I got back to the room I asked "mom, do you think I am May?" She just looked at me kind of blankly for about a minute then said "you're not May". My Aunt May died 23 years ago - my mom was 14 years younger than May and at best they had a strained relationship. Part of what gets me is I couldn't be more different from May. Looks wise we are complete opposites - I'm tall, May was about 5'. Blond vs brunette, light complexion vs dark etc. The only thing physically we have in common is I walk with a mild limp and May had contracted polio as a child and walked with canes. Personality wise there are some basic similarities but still - I don't get how she could confuse me for her - besides the whole being dead 23 years thing. Has this ever happened to any of you? Was I wrong to point out I wasn't her sister?