Lately I’ve been noticing I’ve been having periods where I’ll involuntarily blink rapidly on and off for a few minutes. It goes beyond just blinking with my eyelids and it’s like all my eye muscles squeezing closed and scrunching up my face a bit. I can even feel it a bit when I’m trying to fall asleep. I’m not sure if it’s an anxiety tic or something else as this just started to happen. Could it be caused by a head injury cause I did have a mild one recently. Does this happen to anyone else?