Some promising research on FND

https://www.york.ac.uk/news-and-events/news/2021/research/research-reveals-cause-mystery-condition/?fbclid=IwAR1MxOO4InH21cibXBBb9C3n_kQMWz9NzdsuZjxVDmoXe0i6RKBhYqFwn2s