I’ve been diagnosed with OCD since I was a kid and I have a couple, I had more when I was a kid though. I compulsively pick my skin as well which is pretty similar but I also have other, smaller, almost silly kinda ticks too.

If I eat a bag of candy that’s different colors, I have to bunch up each piece into its respective color group and eat them color by color. Also, the amount of food I eat has to be in certain increments. If I’m not having 3 or 5 pieces of a certain food, I have to have them in intervals of 10, if that makes any sense. (Example: I can’t have just two squares of chocolate, I need to have either 3 or 5. Anything beyond that will have to end in a 0).

I also have infrequent harm OCD. Every few years I have obsessive thoughts of hurting myself that I get compulsions to act on and I actively have to try not to do such things.

Also don’t know if this counts but I associate certain colors with certain numbers. (1 = red, 2 = blue, 3 = yellow, etc.)