Hi ShaunX! Welcome to Wrong Planet! Check out the many interesting forums here. You are among friends here at WP!
Because there are so many possible traits, and intensities of traits, in Autism/Asperger's spectrum disorders, and because no two people has the exact combo of traits and intensities, it is sometimes hard for the professionals to properly diagnose these disorders. The task is made harder by the fact that most psych docs still don't know or understand that much about it. All too often someone will go to one of these less knowledgeable professionals for diagnosis, instead of someone with some experience with people having spectrum disorders.
I recommend that you see someone who has experience with spectrum disorders, if you need or want an official diagnosis. Before going for one, though, take some of the online tests and bring copies of your completed tests with you to your appointment. You can find links to these tests from one of the post articles in the Autism/Asperger's forums section here at WP.
Hope this all helps. 
_________________
If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau