I have always been pretty much a loner in many ways. I can be sociable for awhile, but then I get bored with all the small talk and I tend to get curious about something else. A bit of ADD? Maybe. And some autistic people do engage in gender shifting, but it is very unlikely the cause of their gender shifting. It is more likely a consequence rather than a cause. But they are still like everybody else - variable.
Nevertheless, simple cross dressing and the more pronounced form that includes well defined transgender behavior may cause a person to be less sociable to avoid the discrimination and prejudice. If the dressing/gender shift is or becomes an important need then it may cause a person to isolate themselves more so they can more freely be themselves without the concern of being found out or suffering various degrees of abuse as a result of practicing their need. However, it seems that just being less gregarious and social (a degree of shyness) might need to precede the isolation when engaged in gender expression shifting for whatever reason.
It appears to me clear signs of gender expression is much more acceptable now than it was back in the 1950's and early 60's when it could get you in deep trouble. Thus the younger people who did not experience those times are much more willing to go out and be social in a so-called gender reversed way. Of course, in most it is not really gender reversal except in comparison to the masses; it is actually just being themselves.
Jane, I think the description of yourself is not a great deal different than the way I would describe significant parts of my history. And I think each person's history, which only they know with great intimacy, forms the quilt of their life. It is all connected; there really are not any pieces floating by themselves in orbit around the main pattern. But if you look at even the finest quilt closely you will find many errors that are not readily visible and yet they form the individuality in the beauty of the quilt.