I've had RSD since 2009, it spread to almost full body in 2011, and just last year I was also diagnosed with small fiber neuropathy. They didn't change any of my treatment to treat the SFN...but the doctor believes it started after my fall off a ladder in October 2015 (or...more accurately that is was clinically silent before the fall and after the fall the symptoms began to present themselves). My RSD has gotten much worse since that fall...so I honestly myself don't know what symptoms to attribute to what...it all just hurts.