I know that it is no consolation, but I am dealing with the dementia issues you mentioned with my mom for the last few years. I have a sibling that is living with my mom in her house now, but for the two years prior, they had a falling out and she had moved away. It was then that I discovered that she further along than I had known. My mom, before dementia reared it's ugly head, was demanding, passive aggressive, and sometimes mean. Dementia seems to amplify those traits, making it difficult to know when there are issues when she has been in rehab following several hospitalizations due to falls, UTIs, overdose of medications, etc. I have nearly lost my job trying to be there for her for appointments and all other related needs. Now I am dealing with my own health, depression and anxiety issues. It is a nasty disease and it takes those supporting along for the nasty ride. You and yours are in my prayers.