But then I started to think, “I don’t rock back and forth, hand flap, twirl my hair, so I must not be on the spectrum.”.
Neither do I. Yet I do other things like dance around when I feel like it, which might be considered a stim. No one fits the exact description, it's only a guideline. Very few people are that stereotypical, that why it's a spectrum. One of my siblings rocked, another twirled their hair, another memorized hockey scores. They each seemed to have one or two traits only. Think it all depends on how you were brought up, your environment so to speak does have an effect. Dancing was okay for example in my family, but hand flapping was not, so I guess it all depends on how you may have been influenced as a child.