Mom is 91 yrs old and she usually is a very sweet and mellow person. Lately she has become very depressed because she does not think that her parents and siblings are dead. She keeps asking to go back home to see them. She said I am holding her here in our home and won't let her see them. She starts crying and yelling also. This is so new to me because she has never raised her voice to me before. I love her dearly but I need to know how to handle these situations.