Absolutely, I have noticed many visual 'ticks' in myself which I believe are linked to my stammer. I sometimes create a visual rhythm with my hands or head to help with my flow when I am having difficulty, trying to smooth out my speech to some extent. When I was younger, and I would get stuck on words, I had visual ticks in my head and arms, trying to force my way through a blockage. Other times I speak a lot while using my hands, this is a fairly normal thing that many if not all people do. I do feel at times mine are a little more flamboyant, shall we say. I think i just come across as a little eccentric, which I don't mind too much. Try and own it instead of bring worried about it, make it a quirk.