Bram, I'm so sorry your rsd is spreading. I wish I could do something to keep it from spreading for you, but all I can do is to tell you that I care about you and that I'm always here if you need a friend, (even though I'm a crazy friend!).
When my rsd spread from my right wrist and limbs to my left arm and foot, I was very upset too. It happened slowly after a course of two years and my pm dr had told me it was probably the rsd. I know it is by the way it feels and looks. It's a very distinct feeling, as you well know. I'm so sorry again that this is happening to you and am sending soft hugs your way, with hopes that your rsd will go into remission or at least stop spreading. Sincerely, Renee.