My nan is starting to become forgetful, just the little things, repeating herself etc. the more concerning thing is the change in her personality. She has been quite depressed since my father( her son in law) walked out on us as a family 7 years ago but things seem to be getting worse. She attacks mine and my mothers personality traits and has told is she would rather die alone than spend time with us. I think there maybe early signs of dementia but my mother isn't sure. What do you think?