What you are seeing is normal, I am sure the shelter people told you everything they know.
It will take at least a month for a dog that has possibly been abused, neglected or abandoned to start to feel comfortable and begin to trust you.
In the meantime keep his diet simple, a good kibble with something tasty added (as mentioned in my prior post). Add water to the kibble, especially if you don’t observe him drinking. Very important.
Do not stop the antibiotic, unless told to do so by the vet that has prescribed treatment.
I had a dog that would not eat out of a dish, it’s not a big deal.
Stick to a schedule, dogs love routine, mealtimes at the same times as well as walks, etc.
I would not be surprised if this dog exhibits separation anxiety. How does he act when he is left alone?
Keep us updated.
