Nearly every minute of every day. Drinking lots of ice water is the only thing that helps a bit.

Do you take supplements?

Yes, and this problem used to be a lit worse. I try to make external temperature transitions as gradual as possible. Showers are a huge trigger for me. I use very warm water, then finish off with a few moments of tepid or cool water to transition to air temp. I dress in layers, starting with less, adding more as my body adjusts to.air temp after shower. Also.avoid temp extremes when possible. Humidity makes any temp worse for me.

Yes I had Covid last year and my body is till off. I still get night sweats, have lost a lot of hair, chronic cough and headaches. I also can’t adjust to heat and humidity make my physically I’ll