Could be allergies, but you're right, one would think you'd see itching/scratching and/or watery eyes.
Maybe give her a chewy thing whenever she starts to chew?
__________________ ~ A friend told me I was delusional. I nearly fell off my unicorn. ~
°¨¨¨°ºOº°¨¨¨° Ann | Pfeiffer | Marcel Verdel Purcell | Wylie | Artie °¨¨¨°ºOº°¨¨¨° |