When you say the new meds did not work what was it rx for? I am not saying for you to do this but an issue looking back was I did not give meds enough time. Some I understand work asap but some don't
When I saw the rheumatologist it was to look for auto immune conditions on top of RSD and I also have PN. I am actually going to possibly go back to one again for that. Sometimes like for myself yes I have RSD but have other problems going on too which can make the flares in my RSD worse.
I am not sure who suggest the rheumatologist but possibly ask why you are be referred.