Symptoms of advanced diabetes in older dogs Symptoms of advanced diabetes in older dogs include: kidney disease, myocardial infarction, lethargy, moodiness, prolonged wasting, heart failure, skin loss and cloudy corneas. Related Posts:How long can you live with diabetes?Do older dogs have to have their teeth removed for decay?Symptoms of possible diabetes in dogsHow to treat diabetes in dogsTreatment for Diabetes in DogsManagement of Diabetes Mellitus in DogsEnglish Deutsch Français Español Português 日本語 عربي