Cold flash?

Brittani
Typically I've noticed a common occurrence of me being WAY to warm and putting the ac on or opening windows (if I can) even shedding layers but suddenly today out of no where I was absolutely freezing after letting the bathroom steam up and easing into warm water and turning it up some I finally got warm is this normal or happening to anyone else? Usually before this pregnancy I've been the cold one. Wearing hoodies in 72F weather with jeans and boots but this was just weird almost scary haha