I've had Chronic Motor Tic disorder since I was a teenager (=chronic, frequent, multiple motor tics). Tic disorders are a common comorbid with ASDs/ADHD, etc. I don't know about tics not associated with a tic disorder though. Are you under eighteen? If so, your tic may have constituted a "Transient Motor Tic Disorder," which is very common generally in children (almost 20%), not just those with ASDs.
My tics are worse with stress and fatigue, and some of the specific tics have changed over the years, but they never go away entirely.
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Not all those who wander are lost... but I generally am.