I have been taking care of my 97 year old mother 24/7 for the past 2 years. This morning I woke up with the noise from her slaming her closet door. She got up very early and very upset saying: "Why did you do this to me?. I never thought you'd be so evil!". She was imagining I had taken her children (including me) to the patio. No matter how many times I explained to her that it was only a dream, and to get back in bed, she came in to my bedroom a few minutes later calling me by my father's name, who passed away 9 years ago. I opened her bedroom window to show her there was no one in the patio. She still did not calm down and took my hand to lead her into the living room. It took a while for her to calm down and relax. By this time it was time to start breakfast. A few hours later she completely forgot what happened earlier. I realize it will get worse. She has a very mild case of dementia, but, this was the very first time I saw her behaving like this. When should I contact her doctor for an evaluation?. She is in good health, except for her bad hearing and she has cataracts. She only takes two medications to control her cholesterol and blood pressure, which are normal at this time. I feel blessed for her good health at her age.