I am the lady with the very very tiny little girl Keylee, I have been down this road many times. 1st go get you some Nu-cal. This is a must. They love the taste. Give this in the morning and before you go to bed, no matter if he seems ok or not. Also you can put alittle syurp in his water. This helps keep the sugar up. I learned that when they are smaller it is better to stay on the can, soft food longer, and you can add some Val. pudding in the food. How much does he weigh??? I also love DYNE this is a high calorie liquid dietary supplement. This is great stuff!! You can get it at
Discount Pet Supplies, Pet Supply, Online Pet Supplies It is great for any puppies or dogs not eating good. This is what help Keylee so much. Good luck I hope this helps. The thing to rememeber is even if he looks as if he is find, it can happen again very fast!! Always stay on top of it. Set your clock to get up and check on him in the night time. Good luck again