this has been going on for 2-3 days but stopped eating yesterday and hasn't eaten at all today not even his treat which is out of character for him he is a mixed breed with german shepard and husky he is usually so lively and happy but is becoming more and more subdued he is still drinking and toileting his urine seems to be slightly darker than usual i see no phisical indications of injury or any changes to the way he moves he is just slower his membranes are nice and pink and responsive can anyone give me any ideas before i take him to the vet
It would be very hard to guess what might be wrong. Any chance he got into something poisonous? Trash? Best you can do is take him to the Vet and have them do a complete blood panel. This might indicate some organ problem, infection, etc.