Hi Carlos, @carlitto
I share many of your symptoms and have spent years searching for an accurate diagnosis that would lead me to treatment. My best response to you or anyone for that matter who has been diagnosed with SFPN (small fiber poly neuropathy) is to read the research and presentations of Dr. Anne Oaklander (Mass, General Hospital, Nerve Unit). She has discovered a potential treatment for people with “apparently autoimmune” SFPN. This may be what you have, considering your response to prednisone (which may have decreased the inflammation related to an autoimmune condition that could be causing/related to your SFPN). In addition, I suggest that you research and perhaps contact Dr. David Systrom (Brigham and Women’s Hospital, Boston). He has worked with Dr. Oaklander and approaches SFPN from the pulmonary/cardiac angle. He has also had patients respond well to his spefic rx protocols. Best wishes to you for finding answers and relief. 💫