I think something else worth remembering is how stories get embellished and exaggerated over time with the retelling. (My mother has a story about a spider she saw in Africa as a young woman and admits that every time she tells it, she remembers it being bigger and bigger.) It's not necessarily lying, it's a known psychological phenomenon.
On here once in a woo thread, a woman told a story of how she was staying at a campsite on holiday and went to the local shop to get some bits. On the way back, she felt it was taking longer than before and couldn't see a river she used as a landmark, though she did see a frog. She then found a local who set her on the right path and she arrived back a bit late.
To me, it's bloody obvious what happened. She went shopping in an area she didn't know well, got lost and a local set her right. But she was absolutely unshakably certain that she entered a time warp and was briefly wandering around in the past. And every time she retold the story on the thread, she embellished and changed things to make it look more like a time warp. For example, initially she said she had been to the shop at least once before. After people suggested she just got lost because she didn't know the area well, she retold the story and this time she had been there a full week and gone to the shop every single day. She also took evidence that she was actually near the river as evidence that she wasn't (rather than seeing the frog as evidence that she was close to water, she took it as evidence of woo because she had already decided that she wasn't).
There were several examples of this and people copied and pasted lines from her posts to show the changes in her story from just 20 minutes earlier. She absolutely denied it even though it was right there. And I don't think she was lying. I think she genuinely did not realise or recognise the contradiction because, well, that's how the psychology works. God knows what the story is now after several years of retelling, it changed enough times over one evening!