My experience, based on a rather small sample, is that there is a strong overlap between being on the Spectrum and having at least some doubts about ones gender identity. Possibly our lack of social awareness (= tact) means we are more ready to admit to something that most people would keep well hidden. Possibly there is a real correlation.
At one point I found that of the four male Aspies regularly posting to a small forum, three had well developed female personas. Too small a sample, but interesting. Another forum member was a paintball ref and really one of the lads (and female).
Anyone else willing to speak for themselves? Any parents noticed boyish girls or girlish boys?
It's an interesting question. My partner who was my husband had treatment for gender dysphoria, transitioned from male to female and is now much happier. Our son was diagnosed with Aspergers. I think there's a genetic component to Autism - there's not usually held to be one with gender dysphoria as far as I know. I myself am bi and mix in the bi community where there are a lot of neurodiverse and gender variant people and I see some overlap. For myself I notice some AS type traits, and I'm on the butch side as a female ... definitely not the usual stereo-type woman. I like the diversity of the bi community very much!