question: I have had upper and lower tooth sensitivity on left side for a few months, whether chewing or drinking.  The pain can also come without any reason and it goes from my lower jaw to my ear, to sinus areas and the top of my head.  Also, even when I sleep and  lay on my left side, the pressure on my cheek causes this pain as well.  I am 70 years old and have fillings in most of the larger teeth on that side.  I had recent removal of two teeth on my right side, could this cause movement from left to right, can it be sinus infection or what?