@kyc117 and all ~ I'm sorry to hear of your heat struggles. Here's my 2 cents on heat intolerance. This was the first summer in my life that I was unable to sit in the sun and tan! Monumental. It's for the best obviously, regarding preservation of my skin but, heat intolerance is what prevented me from doing so. I had a couple of episodes where even sitting on my patio a bit too long felt like an iron was on my scalp burning me. It was not a pleasant feeling. Also, use of the oven or grill has changed regarding how my skin, mainly face, feels being too close to the heat. If I'm not careful, my face will feel dry and overheated like a bad sunburn. This started a few years back with my lips having a reaction in the sun. I was slow and steady on becoming B12 deficient and I now believe this was a sign of its decline in my body. I also do not do well in constant heat, such as, if I'm moving around outside, watering flowers or weeding. I can become overheated quite easily, get a beat red face, feel sick and faint. It takes me a bit to come down from this with airconditioing, cold water and rest. I'm not what I used to be, that's for sure, and it plain old sucks! I began a very similar discussion a few months ago if anyone wants to seek it out for further opinions and experiences. I will go try to find it now.
Best to all,
Rachel