I've spent hours trying to get to the bottom of and understand where a lot of Mil's delusions came from - sometimes I could trace them back to a distorted memory of something that had actually happened to her, or someone she knew, sometimes I could trace them back to a TV programme - but often, I was left stumped.
There is a recurring theme of how she can drive/has driven to this or that place - she has never driven in her life, never had a lesson. She now frequently talks about either being in college or going to college - she left school at 14, and never went back to any educational class of any sort. We've had 'one-off' delusions that have defied any attempt on my part to work out the source - the conviction that lasted for several hours about how she had had a baby daughter when she was in the army, before she got married - her name (insisted Mil) ws 'Nancy' and she visited Mil quite regularly. Mil was never in the army, and she only ever had the one child, my husband. Some have been funny (in hindsight, and because if you didn't laugh, you would cry!) - the conviction that she was a close friend of Terry Wogan and her demands that I phone his parents when he passed away, as they couldn't possibly organise his funeral without Mil advising them. Or the one where she ranted that I had to get her a taxi as she was due to perform in the play where she wears a blue dress and a horse is on stage with her. Some have been terrifying - the recurrent belief that there are gunmen/terrorists/men with knives all around her; or the worst one ever - the morning she woke utterly convinced that she was about to be executed and that I was a prison warder getting her washed and dresed to face the hangman.
TV was a problem - in the last few months before she went into a CH, we had to heavily censor what she watched, as whatever she saw could become her reality almost before the programme finished. OH hadn't come home from work as we claimed, she insisted one day - he'd just returned from a bush tucker trial in the jungle! And after watching one of her much loved police/muder-mystery programmes, I became a police officer and she begged me to move the burnt corpse off the landing.
I don't think knowing where the delusions originated helped me to ever reassure her - in their grip, she was so resistant to any form of distraction or persuasion, that whether I knew or not, I rarely was able to comfort her or ease her fears if she was scared or angry. But sometimes knowing would strangely help me to cope with the sheer relentless nature of them - no idea why, it just did.