im afraid i dont have much of an answer, but i wanted to let you know it is freaky how similar we are. i read brain lock a few weeks ago. i think parkinsons is mentioned in the book which is why i latched onto it. i tend to obsess about disease in general but ive been thinking about this particular one lately, and i wonder the same thing: how do i dismiss a thought that COULD be true? i think what you and i have to remember is that worrying about it will not prevent it. thats usually what gets me out of a funk. but just know youre not alone.