Right, being hot causes thirst to increment (I think only for torso/head), and clothing contributes less warmth when you are above comfortable.
What caused the shift was that my sources were for humans at rest, whereas you are rarely at rest in DDA. My apologies to many who may have pointed this out in a way that didn’t strike me as valid! ;p
What’s fun too is it gives me a bit of wiggle room for certain activites. While sleeping, the ambient room temperature will rise to 31C again because you really aren’t moving anymore. If there is a “player_is_reading”, then you can bet reading will be harder too 
edit :
Tweaked hunger and fatigue. By the time you die, you will lose 900 warmth by hunger and 1500 warmth by fatigue.