When my RSD was spreading I felt burning in the spreading areas like a nasty sunburn and some fire ants thrown in, I also got/get other RSD symptoms in the spread areas, symtoms lie smaller cramping areas as it spread and I felt like little bugs (jigglys) under my skin. As well as some bone ache ect, some days my rt arm would swell and be reddish and ache some days my back and neck would burn ect, RSD symptoms and signs with pain are nessary for a diagnosis as with your origional RSD Dx. Referred pain and fibromialgia is what they tend to look for first as they come hand in hand with RSD.

Everything hurt the same way my origional RSD leg did but not usualy as intensly as the origional RSD site, but the types of pains are the same... the same stabbing jabbing pains ect.. we know the pain.. but it's hard to prove when the signs you can actualy see are sporatic as they are sometimes in spread.

Hugs
Sandra