I, too, feel like a "fake person" a lot of the time. People usually ignore me, and that really hurts. I have two different volunteer positions, one at the local library, and one at an organization for people with autism-spectrum disorders, and when I'm volunteering, I'm usually told what to do, and then ignored the rest of the time. All the while, all of the staff members are talking to each other, laughing, and generally being their normal NT selves. I feel like I'm just not valued at either of those places, and volunteering tends to make me feel depressed and lonely most days. But I don't have the courage and determination to try to find some better volunteer positions, so I'm stuck.
Sorry to complain so much. I guess my point is that I can identify.
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"Nobody realizes that some people expend tremendous energy merely to be normal." - Albert Camus