Sorry for the scary pain & frustration! IF you do have RSD/CRPS (sounds like it to me) you need to get treatments for it immediately before it robs you of even more. I'm not a medical professional but, I'm pretty sure mine was slowed WAY down by early nerve blocks
and meds. At the very least start taking 500-1000 mg. of Vit C., some magnesium citrate (start low on that as can cause loose bowels). Those do no harm. The Vit. C can help prevent spread & mag. helps calm nerves.
Try to get a knowledgeable Pain Management Dr. or Neurologist A.S.A.P!