To be worried about going in the office in this heat already?

[Chocolateapot]

I work in an NHS building on the second floor with no aircon. There are windows but these only open a fraction and don't let much air in. When it is hot it gets so unbearable I end up feeling genuinely unwell with a headache. A few years ago apparently someone fainted the office got so hot. AIBU for already worrying about next week in this heatwave?

It was 34C yesterday where I live and 35C in my south facing rooms despite curtains closed.

This aged well and we all live in different parts of the UK!

I managed until 3:30 when I was experiencing a crippling headache - temp on the thermostat read it was 34 degrees inside.
decided that my notes could be done at home.