Hi Pete,
You sound like me when I'm having one of my hot flashes. Seriously. I don't mean to be quip about this but have you had your hormones checked? Both men and woman are affected by hormonal deficiencies and declines as we age. Personally I think hormones are at the root of most of our health issues. Have a look at the article on American RSD hope on the importance of adrenal hormone replacement for Intractable pain.
http://www.rsdhope.org/Showpage.asp?...4&PGCT_ID=4227
I have found that my diet changes have helped with this immensely. Oh by the way I couldn't stand any type of cold blowing on me up until this past 6 months, now it seams like I can't stand the heat yet my rsd foot is still on fire with cold burning pain. If people saw how I dressed cold winter clothes for my left side and summer clothes for my right side they would think I was a freak.
Let me know what you think.
Wishing you find good relief.
MsL