As a child I'm not sure if it was stims or more ocd but I had to touch things 4 times, I used to touch my hands in certain ways 4 times, I would only eat with my front 2 teeth and grind them(it got so bad the dentist had to coat them). I used to mimick people, particularly famous people. That's all I can recall I haven't actually asked my parents about stims, we've been more focused on my unusual behaviours, rituals etc etc.
As an adult I have alot of stims, probably because I don't have to hide them at home, my husband accepts and even loves my little stim behaviours(apart from some of my more irritating noises). I shake my leg up and down when sitting, I flap my arms when bored, feeling awkward or unsure of what to do. I still have the touching my hands but rather then it being the number 4 I just keep going until they feel right. I've noticed recently in the past few weeks I've started clicking my fingers over and over again. I walk on the sides of my feet when I'm tired, if I'm uncomfortable physically I start pressing the insides of my little fingers. I pick my ears all the time, sometimes they bleed and hurt so badly but I keep on fiddling with them.
My most obvious stim is the verbal one, I will randomly shout out things or things relating to things I've seen or repeat what someone has just said (or something relating to what they've just said). This usually has hilarious outcomes, like once my daughter got one of her teddies out and said it was a 'yoohoo' and I shouted hello. I also have a specific voice that is quite high pitched and almost cartoon like that I say these things in. The number 12 is something I say alot so my daughter might ask what time we are going out I shout 12, or my husband might ask how many X we need and I shout 12. Oh and yes and no answers if my husband asks me a question I will always shout out the opposite to what my answer is before then saying in my normal voice my answer. So he might ask if I know where his X is and I will shout out in my cartoon voice "YES" quickly followed by my regular voice saying no, sometimes he likes to play around and ask me which it is and that sets me off and I say yes no yes no yes no a few times and then we have a laugh about it. I get stuck on certain words that I will call out throughout the day regardless of any stimuli. At the moment it's more of a hmmming noise then a word but previous words and phrases have been Zebra, F**k 'em, Hey, (lots and lots of rude words pertaining to sex and body parts), Shoes, Gay, Ock (not a word just the way to describe the noise).
I can surpress it in public but if I'm having a really bad day and I surpress it my eye starts to twitch. The worst is going to visit my mum for the weekend, it's torture and as soon as we get in the car to go home I start calling things out for almost the entire 3 hour trip home.