HI John, I looked up that Harvard health thread, but couldn't access it, nor even buy an on line subscription. But I wonder what the article said about "why do I smell odors that aren't real," because I have that problem. The symptoms of my PN include the numbness, pain and burning below the waist and the sense that my hands are constantly falling asleep, dizziness standing up, but also this odd smell that seems to follow me around. I have wondered if that is related to PN.