Only DH really knows but about 18 years ago out of nowhere I had a panic attack and once it finished I had a prolonged period (months) of depersonalisation/derealisation, as well as severe migraines. It was awful. Then it happened again 10 years ago but with the migraines being less severe.
I never went to the GP, mainly as, especially the first time, I was terrified that I was going mad and I'd be locked up somewhere. I had no knowledge of what was going on. It's only a few years ago I came across a piece written by someone who had the same thing (panic attack followed by these symptoms) that I could give it a name. Never had any trauma in my life, no idea why it happened.
So I can believe that there may be people like me who never got formally diagnosed but recognise their experiences in someone who did. But it's not something I ever want to go through again (and now I recognise it have some calming techniques for when I might feel panicky).
To jump on this as means to self identify, excuse behaviours and to classify yourself as a victim is bloody offensive. I thought I was losing my grip on reality FFS, that's not something I'd want people to know IRL (DH and you lovely vipers aside
)