My PN is from ? and I have been so tested and it started at 28. Anyhow have you been tested for auto immune conditions?What about mris? Anything you may have not thought of during life as being a big deal but may make a connection? For ex for myself before I developed rsd/pn for 2 years I was sick every other month with a fever. I also had severe tight calves. At the time I thought it was weird and went to the doctors for both but nothing was done. In the mean time while waiting for a concrete dx are they helping you with your symptom relief?