Brief history: 91 YO motherinlaw came to live with us 6 weeks ago. Initially happy but then started to believe there was another Mike (her son) here too. 3 weeks in, emergency hosp admission. Discovered heart failure, brain volume loss, previous TIA and a broken neck! In hosp much confusion, incl believing she was in her old school, unable to grasp explanations about neck condition, and describing children who weren't there. Surgeons felt best course was not to operate on neck, or apply brace so sent home with us to take great care of her. Now often forgets neck situation, believing that because she didn't want surgery (nor did they) that there is no ongoing problem. Is becoming increasingly confused, including mixing up familial relationships, especially with her son. Now believes there are two of him here and two of my son - one of whom is my son and one my husbands. Often lucid but mixing in these fictional relationships. Has started getting up early when no-one else is around although she needs someone with her at all times. Anything to do with money becomes very confused. We are waiting for a memory clinic appointment but would appreciate any views on whether this is 'normal' aging or 'normal' for potential dementia :-/. Her appetite is also drastically reduced