Probably bc even though you are fine, you are aware that most others aren't:-(. Empathy is good... even though it hurts.
Ironically it's the people who just DGAF who feel fine, but aren't.
It's arguably better to be aware of it than not then?
Meditation may help.
I have heard of this "touching grass" phenomenon, it's supposed to be really good:-). I think I will try it myself too, when it is a bit less brutally cold though:-P. So then instead of meditating inside, I can meditate outside!?