I've had this problem for a while and never thought it was OCD but no I think it might be or some sort of anxiety. If I'm looking at someone and the light is shining on their face, if I blink at the lightest part of their face, I have to blink at the darkest and the second darkest. it's so annoying. I try hard not to and try to resist but I feel uncomfortable. if I don't and I leave the room, I will picture the person in my head and blink at their face then. it happens with eyes, if I blink at one persons eye, I have to blink at the other. I also get horrible anxiety like saying 'here' in the register or I'm petrified of speaking I front of the class. ergh I shake badly and get lumps in my throat. please someone tell me what it all is!