I am recently diagnosed with hypothyrodism. My thermostat is not working either. I go to bed with a fan blowing on me, and just a sheet on. I wake up so hot I think my blood is boiling. I take synthryoid. My doctor thinks I am nuts complaining about being so hot, he says that is a sign of hyperthyroidism. I had lab work done and my thyroid numbers were good. But this being so hot is driving me crazy. I had the terrible depression when I was first diagnosed. Felt so hopeless. The depression is better.