Yeah, like others, I would say it's called "heaty" too.
I've never heard of a proper medical term for that in English. And yeah, usually you would just describe your condition to the doctors (if they dont know what's yeet hay) and they'll know what you're on.
Yeet hay doesn't really have to do with traditions or whatever that some said earlier about elders making it up so we'll drink lerng cha or etc. It's just a faster way of describing to doctors who understand what's yeet hay instead of saying how much oily stuffs you ate, how little water you drank, how much chips and stuffs you took the past weeks. Yeet hay says it all to them.
It just happens that chinese have a term for this condition and there's none in English (if you do know, please tell me!).
I didnt expect that not everyone knows what this word means...thought it's pretty self-explanatory