My mum was properly diagnosed about 5-6 months ago although we all knew things weren't right for a couple of years. My dad has been very poorly with lung cancer for the last 3 years and is now in the final stages. As dad grows thinner and weaker my mother is becoming worse, but what is troubling me most of all is not what she forgets but rather the new "nasty" persona that she has taken on! They are just about managing on their own at home with regular visits from me and my sister. Dad tries to help mum with arrangements and medical dates (she also has numerous medical problems right now!) but sometimes I have to help out. Yesterday I visited during a doctor home visit and had my mother ranting at me for interfering and almost shaking with rage at my intervention. It's the first time she's been like this with me and I have been tearful ever since (I'm 46 with young children and she's never been this horrible to me in all my years) .... worst of all my dad says she is the same with him now (he doesn't have long left now!!) Is it the effects of Aricept or does the character change this early on (her condition is not that bad yet and she still knows who we all are and is happy to discuss current affairs etc) I feel hurt and desperate - Im losing both of them!