Thanks for the replies Lisa and Butterfly. Facts are good but personal symptoms are quite helpful too. I brought this up because it literally feels like I always have a mild touch of the cold. I also had bronchitis last winter, which is strange since before my RSD I hardly ever got sick. These days I suffer from shortness of breath and breathing problems with what sometimes feels like a burning chest. It's kinda scary since it may be caused by the RSD and all that it brings along.

There is no shortage of online sources that state immune system problems, but so far I am unable to find something that explains why there is that connection. I suppose the answer is obvious. They don't know what causes RSD so how would they know why it causes a weaker immune system?