I visited my grandmother at home today as I usually do every week, and we were having a conversation about funerals as she has just been to one. She asked if I remembered her husbands funeral(my grandads who died when I was a toddler), I said no as I was only my dds age when he died she then became slightly defensive and said no it was after dd was just born, after a few minutes of trying to correct her she eventually realised my dd(3yrs) wasn't born then and I didn't attend due to my age.. should I be concerned about this? Is it an early sign of dementia or just forgetfulness in old age? It was really uncomfortable she was adamant the funeral was after my dd was born. My grandad died 20+ yrs ago.