My poor Tom (Black Lab mix) started shaking his head and scratching at one of his ears last night. I can't see a thing wrong with it. He was up all night flapping those ears and rolling on the floor. I got up before daylight and cleaned it with some ear solution, but it hasn't helped. I'm afraid he's got something down in his ear canal. It's driving him and me both crazy! Neither one of us got much sleep last night.