My mum was diagnosed with dementia in October 2014 then after further tests she was diagnosed last month with lewy bodies dementia. She asks me who 'that man' is who is my father, her husband of 34 years. When I say to her it's Geoff she says there's about 5 Geoff's now then. She also asks where the 'littleun' has gone? There are no little ones to speak of! Is it possible that she is having hallucinations? How do I look after her when she is having them?