Hi @johnbishop, I have nightly bouts of very hot, dry and burning/tingling feet and ankles, aggravated when my feet are in a wam environment (e.g. under the covers with a mattress heater on). Also, I've been EMG/NCS diagnosed with axonal motor sensory nephropathy. At first I suspected erythromelalgia, but my neurologist (and many other patients on Facebook PN groups) indicate that these symptoms can also be the result of small fiber peripheral nephropathy itself. Has that been your experience?