I do feel stupid for feeling this. India is currently on fire and also flooding iirc, by contrast here in 
it's not much hotter than recent years. I am lucky enough that we have a portable AC to run in the bedroom.
It's not the literal heat, our room is an ok temp honestly. But the heat seems to be breaking down my joints and bones, I feel like a decrepit corpse weighted with lead rn. This is the first time I'm feeling this too, didn't happen last year so my body is maybe decaying again.
I think it's heat exhaustion, I am making sure to drink and stuff but I just feel sluggish and sore, I am scarfing ibuprofen to little avail. Weh!
27°C outside during the day, less at night. 28°-31°C inside.
Yes see, this is what my OP refers to. I was certain it's worse elsewhere and I was right! Uh no offense taken, I was pretty sure it's mild up here compared to closer to the equator generally. I wasn't much for complaining about the heat in previous years, think something else about this weather is attacking my pain receptors...
how can it be cooler outside than inside? this is madness
shittily designed buildings baking in the sun will do that. Think less "building" and more "hot car"
buildings either designed with no regard for thermals, or designed for exclusively frigid winter weather (lots of insulation, no mitigation of heating from the sun through windows, etc. because that's desirable in the winter), either can definitely result in hotter indoor than outdoor. I live in one now which is almost that bad, if it were south facing it would genuinely be hotter inside than out, its pretty bad as is and I'm fully north facing
Indoor stagnant no breeze, has always been this way.
Normally I love 27°C weather, but when it's humid it often feels hotter and the air feels muggy, which absolutely sucks. Not sure if this helps or if you'll have access to it, but I grew up in the tropics and my parents used to make chrysanthemum tea and barley water to cool us down and keep us hydrated. Another thing I got from my parents was not to drink water that's too hot or too cold to avoid your body going into shock. Not sure how scientific that is but it's "age-old wisdom" I guess...
But other than that, cool showers twice a day (or three times a day, if it's particularly muggy), and maybe carrying around a portable mini fan if you're moving around a lot.