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is it normal for dogs to breathe heavy while sleeping is it normal for dogs to breathe heavily while sleeping is it normal for puppies to breathe heavy while sleeping is it normal for dogs to breathe heavy when sleeping is it normal for dogs to breathe hard while sleeping is it normal for puppies to breathe heavy when sleeping is it normal for puppies to breathe hard when sleeping is it normal for puppies to breathe hard when they sleep why is my dog breathing heavy while sleeping
