Is my mother autistic or what?

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Mental illness may be too severe but who knows.
>can tell when my parents have had a fight, since she'll make faces or glare at him when he's not looking
>always has a special exaggerated voice when she is quoting my father
>will slam the dishes as she washes them if angry
>hates having people over, refuses to help my father host in any way, e.g. not even asking guests if they want water
>very deep, deep hatred for my stepsister and nieces, will get angry if my father even talks to them on the phone
>complains about shit like people looking into our windows any time someone is near the house, or dust falling from the ceiling because people above us are walking too hard
>retarded superstitious beliefs like cold water being bad for you, microwaves being dangerous, eschewing medicine whenever possible, etc.
>is nice only to me, complains about or just hates anyone else

Obviously, consulting a psychiatrist is not an option. I'm just curious, really, if her behavior rings any bells.