What could this be? I count. Compulsively.

I count. Compulsively. Like when I walk, I count the steps, normally in a sequence of 4s. (While I do this I touch my thumb to each of my other fingers in sequence with the counting). When I listen to people talk, I count the syllables of the words, or the numbers of words themselves, and do again the finger thing. (I do this when I talk as well). And sometimes its not even counting, but the finger thing for each syllable, word, or step. When I don't do this, I realize I will fidget either taping my fingers in a consecutive motion back and forth, or tap my foot. I don't think about doing this, I just do. Also, it bothers me to have more than one object of food on my late at a time. I have to eat my food one part at a time, and prefer to rinse my plate off in between bits when appropriate. I also get anxious when things are not organized or in order, and have come a perfectionist with my work. Though I do feel anxious all the time, like i have forgotten something. I have thought of OCD, but am not sure. (Also, these things do not cripple me in any way, but I am curious to see if it is normal or not).