People with Aspergers stim as well. That is one of the things that we have in common with people with HFA and autism is that we have stimulations, sensory issues and also repetitive movements like rocking. I mostly have either physical stimulation(rocking, and other movements) and/or mental(always talking, thinking 24/7, anything logical and/or medical related topics I always have in my head). I also need sensory stimulation too, but only at certain times of the day(bedtime, when I am bored) and constantly during stress.
Usually no matter what I do, I need physical and mental stimulation, every second of my waking hours. When I sleep, sensory stimulation(sleeping with my stuffed animals on my head, face covering my facial area, needing to be fully covered head to toe with covers over my face as well, even in the summer, etc.). In some instances, I need sensory stimulation 24/7 when it come to my body,not just because I need comfortable clothing, but to stimulate parts of the body to feel comfort, safe, and to help me be able to focus with my day.(like wearing certain materials to give me a hug-like sensations to calm me, always wearing something on my feet even during warm weather so I can feel safe and comfort).