Why dog lethargic cold shivering - questions, Why is my dog lethargic cold and shivering why is my dog lethargic cold and shivering out of nowhere i don't know if he ate anything i'm just so worried i just. Ottawa valley dog whisperer : natural, herbal ear, Natural, herbal ear infection treatments, remedies for dogs and cats. Causes shivering dogs - hubpages, • arousal or anticipation. some dogs may shiver upon seeing other animals. it is not unusual to see a border collie shivering in anticipation upon seeing a group of.