I did a forum search for your symptoms, and the beloved Grand Eagle
@Dorado also had temperature regulation and sweating as one of their symptoms. Here's an excellent post that will help you keep your mind/body practices going and help you realize it's simply another symptom.
http://www.tmswiki.org/forum/threads/how-i-healed-from-a-myriad-of-symptoms.18723/ (How I healed from a myriad of symptoms)
Somethings to think about:
Why is this sensation effecting you so much? You mention being "afraid" and feeling "self-concious" but neither of those are emotions. How is this actually making you feel emotionally about yourself?
There many be fear but is the fear about being hot, or is it actually a fear attached to something else (eg. fear of being liked, or accepted).
The sensations of "heat" is often associated with anger. Have you explored your unconscious internal anger?
Soothe yourself by knowing that this physical sensation most likely just simply your autonomic nervous system being stuck in a position and it is temporary. Mind/body practices have done so much for you, but you might simply need to go a little deeper, and see that this fear may have a broader base. You are so accomplished at mind/body work, you can confront the emotions surrounding this symptom and move forward - it is important to feel confident and powerful in dealing with these symptoms, they can't control you if you don't let them.