Hmm, I used to think I had less autistic traits than I do, because I wasn't recognising my behaviour as conforming to traits. I have also grown up overcompensating so am able to appear very "normal" for short periods of time and under the right circumstances.
Two big ones that people invalidate me for though are (1) I do not speak with a monotone, even though I think in one. The emotional expressiveness in my voice in no way corresponds to any emotions I feel (because I generally don't.) Same goes for my ability to smile, laugh, etc. I'm usually not happy nor amused, I have just learned that making these sounds and gestures gets people off my back, and now I can't stop doing it, it's programmed in. Plus it probably wouldn't help if I did delete it. This may also be due to the fact I have speech problems and try to overcompensate for that too, I don't know. (2) I love change, and hate routine. If anything stays the same and does not vary significantly for more than between 3 - 6 months usually, I start to feel trapped and stagnated. There is the system I follow, but that system can be adapted for any environment or circumstance and I frequently do so.
A therapist recently told me this behaviour is controlled by trauma, though, so if they are to be believed it is possible that strong enough trauma can overwrite autistic traits / preferences in this instance.
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Alexithymia - 147 points.
Low-Verbal.