I have a history of very severe "moderate" self injury.. I've had several psychiatrist tell me I was the worst they'd ever seen. I've known one person who was as bad as I was with the self-injury, and I'm quite sure that she has an autistic disorder as well.. I read an article about how a fairly high percentage of anorexics are likely to have undiagnosed AS.. noting that girls are unlikely to be diagnosed, and that the intensity of an anorexic's obsession with food and weight is awfully AS-esque.
(There are three TYPES of self-injury:
Repetitive, which is like the head-banging you see in mental retardation, kanners, and lesch-nyhan syndrome
Moderate, which is the emotionally based coping mechanism, and
Major, which occurs with psychotic disorders, like schizophrenics plucking out their eyes)
When there's as much frustration as someone with AS has, and so little ability to communicate it, it shouldn't be at all surprising...