What if I'm not autistic?

Your whole life can also make sense if you accept or slightly modify your own assessment; either regardless of or in accordance with their assessment. My own head keeps making me doubt, almost daily, the diagnosis I was given. And yet I am still here. I will probably always be left with a feeling of some divergence from the others, and I suppose ASD and/or neurodiversity are actually as good labels as are currently available. Asperger and Kanner, and others, labelled that perception by ourselves and others as autism. You might say it is a somewhat arbitrary label, but both they and you have to initially call it something, I suppose. So you can self-identify, regardless of how your assessor feels on any given day; especially if you and others find that to be a constructive way to proceed. But definitely listen to their reasoning, either way, because there is also no harm in partially reassessing yourself. It is quite likely, though, that a personal reassessment won't actually make that much difference to your overall perception. That's because you have probably lived with this thing for quite a few years already, and so are bound to know quite a bit about your own behaviour; perhaps more so than the so-called experts. There is said to be no cure, but there is certainly the possibility of calm and enjoyable acceptance. And you can self-identify yourself any way you find helpful. It's also up-to-you to decide whether you are going to share either their and/or your assessment with significant others. If you do self-identify, the last thing you probably need is a complete outsider's critique of the identity you choose. That's my experience, anyway!

There seem to be many people on this site who are quite prepared to self-identify, if they find their assessor's opinion doesn't quite add up in their own personal terms.  Good for them! Many also choose not to widely share their knowledge F2F, and keep a high degree of anonymity online.

;-)