Would you mind going into a little more detail regarding your heat intolerance? I have it and it's getting worse every year, can't go outside if it's above 75f if dew point is high and in NYC that's rough in summer. Feel dizzy, and get pin pick sensation. My Dr thinks it's definitely thyroid - we've determined I have Hashimotos. he's got my on Iodine doesn't want ot put me on compound t4 of t3 for fear I'd convert into hyper thyroid - but may have to we'll see.