I don't know if I should be worried about this or not. My son, for the last two days, seems to be blinking a whole lot. He gets so annoyed too, he says "Ugh, stop blinking eyes!"
I now it sounds so silly to be worried about, but it's just an odd behavior. Not typical blinking. Almost like he can't help it and his whole face squinches up and his shoulders come up when it happens.
I think it may have to do with him not wearing his glasses very much. Since summer started he just hasn't really bothered with them. I told him to wear them every day and we will see if that helps.