Unusual usual

Over the last decade, I've had the misfortune to suffer three short-lived but florid, frightening episodes of depersonalisation and disassociation. I'm told from psychiatriatic perspectives that these were anxious in origin and not diagnostically psychotic, although you could've fooled me, so real and entrenched were my crazy ideations at times, reticulated in a web of curious and somewhat tangential factoids. But I never had voices in my head.

1) 1996
2) 1998
3) 2003