If one in 6 did diagnose you, you most probably do not have it. Anyway...
The difference between social phobia and AS, since I have experience with both, is that when you have only Social Phobia, you think you can't communicate out of fear, you fear situations, you are seen as having low social skills because of the anxiety. You then are able to communicate, can understand body language, voice tone, subtle communication cues, but are unable to respond because of fear or make mistake then.
When you have Asperger's it is different. Then it is like you don't have the skills needed from when really young, but do not fear the communication. Just can't respond because you do not understand it and basically don't know how to respond even when you're trying to learn it so hard. Get it?
Indeed people can have both, like I do, and in me it is reason the bullying, criticizing and judgments placed on me because of the low social skills I have because I have Asperger's. I also didn't fear situations when really young, until some later grade of primary, but I never could really make friends, nor was I interested to. In first grades I wasn't, I was like in my own world, but later I wanted, but couldn't. And later I began to fear the communication because it didn't 'click' in my head on how to do it.
When you don't know the thing, you come to fear it after time, especially if everyone is telling you there's something wrong with you because you can't.
When there's only SP with no AS, it is not like that. You know how to communicate, but fear it because of bullying or any other reason. Or you can be shy and can then fear it as well. Also lack of experience etc. But not as with AS.
AS itself does not include just communication and socializing. It includes also the need for order, inflexibility, repetitiveness, sensory sensitivity, literal thinking, trouble understanding non-verbal communication...
I have these, this is not an easy life, I am mild to moderate on AS spectrum. And I know what AS means really well. Actually I hate what's going on with all the self-diagnosis and all, because it is a serious thing, at least for me. Because I know what I am going through. And have a professional diagnosis, also been told by some other people who work with me or know me well.
It is a thing that is seen, not so hidden. If you want, you will clearly see. Even in person that doesn't have a diagnosis. He might just seem weird, creepy, but you'll know something is definitely going on by the weird and troubled behavior.
If you think you have Asperger's, go see a professional and talk about that matter.
And people, don't try to diagnose yourself by yourself alone, self- tests or anything. Better to learn about what the thing really is (not just the criteria) and try to talk to someone familiar with it about that, the best it would be if an autism spectrum specialist, because they pick it up almost immediately when they see you perform and talk with you even a bit, and are most times accurate.
