Why do I feel ‘heaty’?

Thorny issue: Durians are well-known for their purported ‘heatiness’, but you could just be suffering from LPR if you overindulge.

I LOVE to eat chocolates. I usually eat several pieces a day. But each time I eat chocolates, I notice that I get some sort of a sore throat right after. This sore throat does not last and goes away after an hour or two. Is this what people call “heatiness”?

Yes.