Oh that website was helpful. I am battling this with Thor right now.
Separation anxiety sometimes occurs when:
- A dog has never or rarely been left alone.

- Following a long interval, such as a vacation, during which the owner and* dog are constantly together.

- After a traumatic event (from the dog?s point of view) such as a period of time spent at a shelter or boarding kennel.

- After a change in the family?s routine or structure (a child leaving for college, a change in work schedule, a move to a new home, a new pet or person in the home).
Poor guys is dealing with 3 of 4!!
Chachi, how are things for you guys?