Poor little thing! I would have had my dog for a second opinion ASAP. Dogs can shake from pain/suffering, fear, stress, excitement, joy, cold, illness, wanting something badly. He needs a thorough work-up for possible illness or chronic pain first and foremost and, if that is all normal, some positive-reinforcement behavior modification work to get him working learning things, becoming sure of himself and less stressed and possibly fearful. But the first thing is to be sure he's not in chronic pain or suffering from some underlying condition.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |