I have a 12yr pug/laso neutered male that recently has started whining. It has become increasing now and he is doing all last nite and today. He is also scratching his l and r side, I have checked and there is nothing visible, no redness or ticks. I have been giving a baby asp 3 x a day. Last nite he continued whining all nite. It seems like he is avoiding walking up stairs also. thank-you