I think I have two things that pretty much tie. One, hypersensitivity, particularly with noise, crowds, and also with changing from dry to wet or wet to dry (which makes showering/bathing a real problem). Two, my particular severity level, and the fact that my functioning ability varies (I guess that's technically two and three). The former means I'm too disabled by it to do without help but not disabled enough to actually get it. The latter means people see me at my best and assume I'm always capable of that and that if I don't act like it, it's only because I'm not trying hard enough, I don't care, or I just don't want to do things. That's probably a large part of where my self-esteem issues come from, because I grew up being told my best (not that people actually believed it was my best) was not good enough.
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Yet in my new wildness and freedom I almost welcome the bitterness of alienage. For although nepenthe has calmed me, I know always that I am an outsider; a stranger in this century and among those who are still men.
-H. P. Lovecraft, "The Outsider"