Delirium

Might be and effect or symptom of a myriad of things, as drugs, diseases, fever or magic. 
Maybe the whumpee tries to hurt a loved one or themselves during it, or maybe they just don't make sense at all.
Check the complete Tropes index for more.
== Animes ==
== TV Shows ==
Star Trek: Enterprise
* 1x04: Trip Tucker (Connor Trinneer), along with a few crewmates, gets affected by a toxin at an unknown planet, which causes them to hallucinates, with the bonus of paranoia delusions.
* 1x24: Wandering through the desert and suffering with the heat, Trip starts showing symptoms of heatstroke, one of them being lack of sense of what is happening around him.
Westworld
* 2x08: Akecheta finds Logan Delos (Ben Barnes), naked, sun burned and delirious, at the middle of the desert, where he had been abandoned at the end of Season 1. 
== Movies ==
== Dramas ==
Word of Honor
* Ep 29: Exhausted from using too much of his internal energy, devastated by the death of the man he was trying to save, and having just wake from a nightmare from his past, Wen Ke Xing (Gong Jun) is strangely fixated on killing a specific person and runs off yelling so, with his protegee trying to hold and stop him.
== Gallery ==
File:Westworld 2x08 - Delirium.gif|"This is the wrong world" - Logan to Akecheta, Westworld 2x08