My humon (typist) and I are reaching out to you for advice. It is going on three weeks since I was adopted and yet I hate to be left alone. The humon first thought it was because I was being crate-trained but turns out that I love being in there. I willingly sleep in the crate every night but whenever the humon leaves me in the crate for a few hours or in the house for five minutes I flip out and start whining up a storm.
We spoke with a very well-educated humon at Petco who recommended that I have Separation Anxiety, which most likely stems from abuse or neglect in my past. Because of this, I just don't like to be left alone because I think I'm being left forever. Thankfully, this is curable but it will most likely take a while to cure....possibly even dog years (months).
The knowledgable humon said that my humon shouldn't make a big deal of her leaving. I should not be smothered before I am parted with because it will encourage my subsequent behavior. In addition, I should be given a toy and food while the humon is gone, such as a kong with peanut butter (but not organic or natural and it can be frozen), yogurt that has been frozen, carrots, or treats. This will keep me occupied while the humon is leaving and hopefully calm my nerves for my time alone. (I should note too that because Shibas have such active minds that the only recommended items for them to be left alone with are a Kong or Kyjen Fire Hose (made from the same material as a fire hose) dog toys).
I am reaching out to you world to see if you have any additional advice. This seems to be both an issue that cannot be fixed overnight nor requires attention to be solved.