I have lived in a cold climate area my whole life and have severe reynauds syndrome. It can be 100F and the second I touch an ice cube all of my fingers turn deathly pale. Nearly 100% of the time, no matter the temperature, I will have an extremity that has no blood flow. It is severe enough that it is physically debilitating. I can't play in the snow with my kids for very long, or play guitar without running my hands under a hot tap. Right now I have a cheap box fan running on low, 10' away, and four of my fingers have cut circulation. Because there is no blood in my fingers or toes, touching anything freezing cold feels like they are being stabbed. I'm also very prone to frostbite and have worried about losing my toes a few times due to it. I actually have little feeling in them and have lobbed of parts of my fingers off which can't even slightly compare to the pain of grabbing a cold steering wheel. When I wash my hands the water has to be scalding hot and have accidentally caused others to scald themselves by forgetting to tell them.

My body though? Can't handle anything above 75f. I'm comfortable in just boxers in 50F. I overheat in long sleeves so easily that I own 1 longsleeve shirt. I had to get the HVAC tech at my work to change the air exchangers so that my work area was 60F so I didnt sweat through my PPE.

Plus, mine is a lifelong curse unlike your wimpy little leukemia. I kid. I just wanted to complain a bit. Glad you beat the big C. I hope to never have that battle and hope it was your last.