[Oceans11]

I will definetly follow up with the vet. He is 2 yrs. old and has gained weight. I am wondering if it might be the freeze dried lamb lungs we give as a treat. He loves them and we probably give him more than we should. We have been feeding him 1/2 to 3/4 of a can of Evangers chicken thighs or beef together w/Orijin Puppy kibble. He weighs 18 lbs.
Thank you for your advice DogFoodie!