Hi AMK, It sounds like some of your symptoms could be rsd related but some not so much. But I'm not a dr so I'm not sure. If I were you I would go see a neurologist who has experience with rsd patients and also see a pm dr who has rsd patients. I would also get a complete physical from your gp along with bloodwork and an EKG. Maybe you have pre diabetes. That would explain your dizziness and blurry vision. Insomnia is a side effect of rsd and so are mobility problems, pain, swelling, skin changes like shiny skin, increased hair and nail growth in the rsd site and a deep aching and burning feeling. The rashes could be from rsd too or from something else like an allergic reaction to something. The fact that you burning, coldness and muscle spasms are random make me wonder if it's rsd because I have at least burning and intense deep aching pain all the time in my rsd site. As for low blood pressure, maybe that has something to do with low blood sugar? I don't know for sure. I know rsd can affect the heart by causing the it to beat faster due to the immflamation it can cause if it goes internal. But I would think your blood pressure would be higher then. I am not a dr so I would start with your gp and then neurologist and pm. I hope you find out what you have soon and that it is not rsd. But if it is, there are treatments that can help you manage your pain better. Take care.