Hi. I would go to a neurologist because tingling can be a form of neuropathy too. I am wondering like I said in my email if you have other conditions as well as rsd. I did have back problems for awhile but it came after my dx of PN and RSD and I was asked way before the back if I had pain there because my condition is in my legs. That is why I had a mri of my brain and spine which maybe you could suggest having. Try and I know how hard this is with new symptoms but to take a deep breath. I know how fearful I have been of spreads and though I have had it happen to parts some that I did think was rsd turned out not to be and did get better on its own. Of course it is better to have it checked out so treatment can be started asap.