I'm not sure that this is different or unique or related to Parkinson's, but it seems to be something that has started for me only in the past several years: There's a piece of inanimate dirt on the counter or table about two to three feet (0,6-0,9 m) in front of me. It doesn't move, but I perceive that it does. I get ready to swat it and suddenly recognize that it is only a cookie crumb or an imperfection in the surface. But I would have sworn that I had seen it move just seconds before. Things didn't move around like that when I was younger - not to my recollection. So I wonder....It is aging? Is it Parkinson's? Or is it something else ? Art