Dear Barbara, I received a message last week from a Kevin Mahoney of MA. His situation seems to be more relevent to yours. My brain injury was a one time event. In other words, I am not going to get any worse, (Lucky me). However, your condition sounds like Kevin's illness. CO poisoning over a long period of time, which led to damage of the substancia nigra(SP?). I am not sure exactly how the damage works, but it somehow ended in his contracting the disease. I don't claim to be a Parkinson's expert, so I listen to my doctors when they tell me that I have Parkinson's syndrome, not PD. If I am wrong, I would love to hear from you again. If I am right, you may contact Kevin at [log in to unmask] Thank you for responding to my message! Jacob Drollinger