Where the patient experiences more keyboard spasms than usual. Victim will be more prone to "fangirling" and hiding behind randompeople if they find something threatening.
"Jeez, what the fuck happened to Johnathan?"
"Mf got a case of TheaSyndrome that's what."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.