My guess would be Asperger Syndrome plus social anxiety disorder. But I could be wrong, I haven't done a full-blown assessment of you.
If you want to know if you have AS, take the online tests. Don't just take one - they're not always accurate, but if you take several and most agree that you're AS, you probably are. Several posters here have provided online tests for AS for you to try, and there's also a stickied thread of online tests for AS you can check out.
Then, you can decide whether you think you'll benefit from an official assessment. If you're still unsure, go for it. If you need accomodations in university that you can't get as an undiagnosed student, go for it. But if just knowing about AS yourself and applying it to your life is enough for you, then an official diagnosis is unnecessary (though you may still want one).
