I can attest to that. I didn't/don't always pick up on the little social cues that everyone else seems to understand. To me, it was a foreign language, and growing up I knew I wasn't like everyone else. I kept my feeling of being apart from everyone to myself, thinking there was something wrong with me.
When I was older, I learned about and researched Asperger's Syndrome and it was like reading about myself. It was such a relief to finally I have a name for why I was different, that I wasn't just 'weird'.
I assumed that Asperger's fell somewhere on the wide Autism Spectrum but didn't know for certain until reading this piece.