December 15th, 2004, 11:51 AM
My 5 month old Boxer has stopped barking. He is now making this kind of groaning noise when he would usually bark. He is still eating normally and his activity level is still very high. The day he stopped barking he had eaten some grass and consequently threw up. On that day it had also gotten extremely cold in the house due to heating problems. Is this a sign of a cold? Please advise.