I'm glad you asked this. I've been wondering the same thing because the other day I saw someone on another website say that clumsiness is common with aspies and that it gets better with age.
I'm not really sure if I'm clumsy or not? I was called clumsy as a child (I had lots of accidents, broken bones, two carpal tunnel surgeries, and I did trip over a pencil once), but my mother is pretty clumsy so that could just be something I inherited. I am not an athletic person overall (unless rock climbing counts? haha and I'm hoping to start figure skating) - I'm actually more musically inclined (clarinet, singing, piano, and guitar), but I don't feel like I'm clumsy now though.
Since other people brought it up: my handwriting is basically great, though it is small. I've been told I have an odd pencil grip though (apparently it's the same one my father has), but I always attributed that to the fact that I started writing (and picked up a pencil) at the age of one.
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Diagnosed with ADHD combined type (02/09/16) and ASD Level 1 (04/28/16).