Mom still lives alone at 88. I call her and visit often. Our conversations consist of her complaining about absolutely everything. When I try to ask her about her visit to my sister's house the day before, she has no input. She remembers going there but doesn't recall what she had for dinner or any other details. She asks the same questions multiple times and cannot remember appointments, birthdays, holidays etc. I have to call her in the morning on the day of my visit and then again when I am on my way over there so she'll be dressed and ready to go. She has no stimulation in her life other than tv and visits from me and my sister. We take her every where she needs to go or we do everything for her. Is her mental state due to her non stimulating life style or a sign of things to come?
There are specific symptoms to Alzheimer's that someone with garden variety dementia may not experience. Just like there are specific symptoms to Lewy Body Dementia that someone with just plain old dementia may not experience.
Alzheimer's is gauged in stages and there are many stages that contain specific symptoms. The Alzheimer's Association has a comprehensive list on their website.
Take care and please let us know how this works out.