I am sorry about your husband. I read I think on this just now. What tests is he having to dx this? I have a confusion at the moment between my RSD and PN because there are a lot of similar symptoms. I guess I would ask the doctor if it could possibly be the spread of rsd, what caused this such as was it from compensating for the rsd area,underlying causes,etc.What would be the difference in treatment if it was this dx vs rsd. I understand how this effects the whole family as I have this condition but my mom cries with me from me suffering. Try to stay in the day though I know how hard. I know a girl and on my hard days I think of her who was in a wheel chair,had to be out of school for a very long time,and barley could eat from her rsd. Then she got a scs after many other treatments that did not work and she is walking,back in school,etc. Let us know how he does and the outcome. He is lucky to have you as I know how important real time family support is to this.