Is that you in your avatar??
If it is… and if I followed your intro remarks correctly… it sounds like you have trained your body to exist on a very low amount of calorie intake – while building muscle… which tells me you have trained your body to have a VERY SLOW metabolism – which would agree with the temps you’re measuring.
What are your goals for yourself at this point?
If it’s simply to ‘be warm’ – you might try mixing in more carbs (even whole grains would be a start) and drinking less water (if you’ve been over-doing it). See if you can stoke your body into rev’ving up the heat a bit. If you want to really dive in to E4H, indulge in a few slices of pizza, and see how you feel afterwards, then LISTEN to your body and see what it’d like you to do next.
At least… that’s my un-educated recommendation… you might also want to talk to a professional for some real advice. :)