Wow, thank you so much Janiedelite for mentioning Erythromelalgia!
I have spent probably 15 years wondering what is wrong with my feet (plus many google searches), with no luck.
I finally have an answer as to my feet that go bright red, swell, and experience an unbearable burning sensation that spreads almost up to mid-calf. A few different things trigger it and it is more common in the hot summer months here in Australia. Since reading your comment I have read more and looked at many pictures and Erythromelalgia is definitely what I am experiencing.
Thank you for giving me the missing piece to a puzzle that has stumped me for years!
(I had chilblains as a child, and reynauds of the nipple while breastfeeding, and my doctor recently floated POTS as a possibility, which is how I found this thread).
