As long as your dog returns to normal, wouldn't worry about it. If it keeps up, get vet check and if all okay physically, start behavior modification training - it works wonders on most behavior problems. It is work but you and your dog will so enjoy it and the rewards are the best dog in the world. There are many articles here and online and in the petstore about behavior modification training.
__________________  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 |