I have this problem too. I actually bought one of those cooling pillow to sit on or put in my back to "cool" me down, because even though it's hot and my heart is racing, I can't break a sweat.
BTW, Feo, thanks for your posts. Your progress and comments about the apparent high success rate of NB made me looked at it again, especially on Laredo's success. I've been focusing solely on the adrenals for the past 6 months, and although I've stabilized, my symptoms would come back whenever I get any physical stress (like walking for 5 minutes continuously). It's kind of pathetic because my neighbor underwent treatment for throat cancer six months ago and now he's running around already! Anyways, I just read the "Why I am so tired" book yesterday and I do have a lot of the tell tale signs of copper overload (psoriasis, estrogen dominance, etc) so I'm also going to try to do the detox. I'm also going to work with Pam :). Thanks!