Hi everyone Although its my Mum who has dementia, this is a question about Dad: he's 80 and last week had surgery under general anaesthetic. He's normally totally alert, logical, on the ball and bright, but he's started to suffer from really terrifying and distressing delusions of being persecuted by other patients, staff, police etc, - its all his worst fears in fact. They seem absolutely real to him, but at the same time he is completely fine the rest of the time. The hospital are doing everything they can to find out what's going on and help him, but its very worrying to say the least. I feel so sorry for him, as he's suffering badly, and also I can't bear to think that he might be going the same way as Mum. Does anyone have any experience of this sort of problem?