Priscilla,
You should really subscribe to the RSDSA.org site & get the monthly newsletter in the mail. If you have not checked them out yet you need to. They provide the most up to date information.
CRPS is the latest name they have given RSD because they have found evidence that it effects more than just the Sympathetic Nervous System.
They are always learning more but it is important for YOU to be on top of it because doctors who do not see patients regularly with this don't know & you can easily be told you have something different or that it is all in your head.
check out RSDSA (dot) ORG