Do I have OCD?

Sometimes I will hit my knee wih my right hand then I will get this huge urge to hit my other knee with my other hand. Do you get what I mean? and sometimes I have to blink my eyes over and over again til it feels just right. I always get wierd tingiling feelings and have to move around alot. Everything in my room has to be in the right spot. I am super supersticous and belive everything has to be done the same way everytime.