I wouldn't say all of it is autism related. The wagging your foot is something I do too, and it might be a form of stimming. However, autistic stimming is usually specifically related to dealing with stressful situations, so I don't think it has anything to do with autism. I also growl a lot, and for me that is due to stress. I do it to release some of my frustration as a sort of verbal stim. Sometimes I will meow at my parent's cat, but that's just to see if I can confuse them enough that they think it's another cat. As for the rest of it, some of it may have something to do with autism and some of it may just be your own particular brand of odd.
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Uncertain of diagnosis, either ADHD or Aspergers.
Aspie quiz: 143/200 AS, 81/200 NT; AQ 43; "eyes" 17/39, EQ/SQ 21/51 BAPQ: Autistic/BAP- You scored 92 aloof, 111 rigid and 103 pragmatic