Jacob and others, I wonder what would determine who would be damaged in such a way by CO as to cause them to have PD?? In about 1989 I went to work for a gas station. I spent 8 or more hours a day there for 2 years being exposed to the fumes from all those vehicles. Although I was diagnosed only 3 years ago, from what I have learned I believe that my symptoms date back to about 1989/90. Could I be another victim of CO? And if I am, why me and not the other people who worked at the station? Just wondering?? don't forget how to laugh (and do it often) Marling McReynolds [log in to unmask]