Omg he is CUTE. I don't know if you have anyone to come play with him while you are gone or maybe have a pet sitter watch him if you have the funds? He is a hound and they usually are barkers when you leave anyways so it may not be full on seperation anxiety. My coonhound does the same. Can he stay at someone's house while you're gone like a friend's or family that you would trust with him??