I have tics and stim as well. I tend to categorize them in the way that... tics are uncomfortable NOT to do, I'm very aware of them, and there is an undeniable urge to do them. They happen all the time, even if I am not feeling excited or anxious, and they are not a way to release energy, but rather and attempt to satisfy an uncomfortable urge.
Stims on the other hand are usually a way for me to release energy or keep myself otherwise occupied. Sometimes I am not even aware that I'm doing them, but when I am, there isn't an overwhelming urge to do them, and I can control them if I want.
Hopefully that helps.
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Loud looks and soft sounds.