Thank you for replying me. You are very kind My only doubt is:

If the EMG is normal and the Skin biopsy that I'm gonna do is also normal (negative for small neuropathic pain), can I infer that the prolonging of my pain is psicossomatic? Maybe due to anxiety (whose levels I realise are extremely high.) If this is the case I will deal with my problem differently. That is way I'm so worried and stressed out.