Just wondering if anyone noticed personality change as an early symptom in parents? My DM is 78 has been forgetting words for a year or so now, addressed birthday cards to grandchildren in wrong (random) names. Last few months she’s particularly nasty to me, our relationship has always been a little fractious but as eldest daughter I’ve always been most involved in helping. She’s just downright nasty to me most days. She refuses to accept her memory or organisational skills are failing, if I point anything out she gets very angry and defensive and almost abusive. Is the general vitriol a sign of dementia? I’m struggling to think of another reason. She’s also nasty to my father and has had several minor car bumps over past year. Is this how it starts?