From what I know, I believe that article means that most people start with "warm RSD" and if not treated, transition to "cold RSD." Really though, the classic presentation of RSD is cold.

Most people also have periods of hot and periods of cold, sometimes changing suddenly many times a day. When I'm up and walking around, my foot/leg is usually warm, and it goes cold very quickly when I stop walking. In the evenings and and night, it's always pretty cold, but usually late at night it starts to get really uncomfortably hot. Most of the people with RSD I've talked to (hundreds, probably, over the past 12 years) describe some periods of hot and some of cold.

I do have a bit of a question though! Does anyone else kind of prefer the cold? When my leg is hot, I feel like the zappy pains are worse. When it's cold, I feel like I have a little bit of numbness or reduced sensation, which is better than actually having to feel EVERYTHING.

-Betsy