Last week I had a conversation with 3 other PWP over lunch when I bit my lower lip while chewing. For the millionth time ... or so it felt. I asked the lunch mates if any of them have had a similar post diagnosis problem. They all responded affimatively. So how about it? Have you experienced this? I don't recall seeing anything in PD literalture, do you know of any research? Would your experience lead you to believe this is PD related or not?