Hi, I'm new here and have been 'diagnosed' with idiopathic pn. Obviously it must have a cause, but blood tests and an MRI scan have failed so far to find anything. Symptoms are tingling/numbness in hands, feet and legs and a feeling of walking on cobbles all the time. It started with numbness in the top of my right thigh and extreme burning sensations in my hands and feet. Does anyone have any suggestions as to finding a cause or treatments that help?