After going down the hypothyroid path a while back, I woke up yesterday feeling very run down. Pretty obvious, the room being too cold disallowed me from sleeping properly. Despite the body being supposed to ‘cool down’ while sleeping, in my case, where the body is in a detriment of metabolic resources, keeping warm is more important. I slept in thermals and socks last night, much more energy today. Waking temperature (measured under armpit for ~15 minutes with a digital thermometer) was 36 this morning. I guess this is an improvement. The idea of using NDT (naturally desiccated thyroid) is somewhat appealing, although not really keen to go down that path again at this point, sans appendix.