The symptoms can be real but the grouping them into one diagnosis can be wrong and sometimes we pathologize normal behavior.
Also the information on that page is incorrect. The main difference between SPD and Aspergers is that there are good social skills in SPD, they are not used. The page claims SPD has poor social skills.
I am also a little suspicious when people claim someone does not enjoy things, that they are unemotional and cold. I have been accused of this because I might not show everything on the outside. But believe me, inside I am a real human being! Not a robot. Have been accused of not liking things when people tried to force the type of humor on me I dislike or take part in "fun" things like partying or shopping. Oh so then Jimi does not like anything! Well I do. What I like they find boring though.
SPD lost at least half of their recruits to the Aspergers diagnosis. Some are now diagnosed dysthymic, which is a mood disorder.
The core of SPD should be detachment from others, is this thing really ground for giving people a label of a personality DISORDER? Not so sure. We can't all be social butterflies. But already just being an introvert is seen as pathological these days.....
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