OK, so I was diagnosed with RSD 5 years ago...ish. I've done my fair share of research on the subject since then. I'm just now however am starting to think that I may not have or it at least I might have something else.

This is what I need to know. IF someone has stage 3 RSD and has lost or is starting to lose motor function/control of the limb that is infected is the redness and the shiny skin ALWAYS a constant of that stage and more so if the shiny skin and redness AREN'T present is it even possible that it could be RSD??

Also; Does RSD always spread or can it stay in a centralized location?