I've never been diagnosed, but it's almost certain I do and have done much reading on it in the last ten years or so (one online 'test' I did in the last few days I scored 39 out of 50 with 32 being the approximate lower limit- oh shit, it's the test linked to by Marco!). Trouble is, 'we' develop strategies to cope with the worst of it as we get older and go out of our way to avoid difficult social situations, so it becomes more difficult for a proper diagnosis. I was able to chat about audio for hours to customers, but social chit-chat, no way. My better half puts up with a lot and she tells me I'm better than when we first met twenty two years ago when I was thirty eight, but I still don't 'read' people well and trying to understand a conversation in a noisy crowded room is still beyond me, so I don't socialise...