I’m on my 7th day of soft dry fasting and I wanted to speed up the detox process and did a hot bath. Needles to say, after 2-3 min in the bath, I nearly fainted out. I got up quickly and got out in the balcony naked and wet, because it was snowing outside. Lucky for me that it was cold outside and I recovered in a few minutes.
NEVER DO A HOT BATH DURING DRY FASTING!
Your blood pools to the extremities (vasodilation) to let off the excess heat so yeah your brain wasn’t getting enough blood and you got dizzy/almost passed out. I’d say being on day 7 is a large part of it too