If your personal research and online test results are not clearing things up for you, then you could always go for an official diagnosis.
In my case, my personal research and online test were clear enough to leave no doubts in my mind. Also my sister, who came across Asperger's info on her own, contacted me to tell me that she thought I have it. I then told her about my own research and test results, and that I agree with her, and with my own results.
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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