I was self-diagnosed with AS until today. I was aware of other conditions earlier in my life (OCD and mild depression, depression was also confirmed today) but I was unaware of AS until a few years ago. I heard it mentioned on a tv program and it caught my attention. I then began reading all I could about it (in books and online) and it really hit home. Earlier this year, I discovered WP and it was the first time I ever really connected with a group of people. The people here are definitely eclectic, but still share so many features.
I began my search for a professional Dx about 6 months ago. I called 8 of the ten doctors on the list provided by my insurance. It took 8 attempts to find a doctor willing to diagnose AS in an adult. Many months and many, many tests later, it is official. I am pleased at the confirmation, but it is a bit anti-climatic for me. The doc asked me how I felt about the Dx and all I could say was it was what I expected. I sought her out for that purpose. I simply don't know what to do with the result. 
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Those who cannot tell what they desire or expect, still sigh and struggle with indefinite thoughts and vast wishes. - Emerson
Selfishness is not living as one wishes to live, it is asking others to live as one wishes to live. - Oscar Wilde