What do you think can dogs go through Stress and anxiety?

An unusual incident happened about a year ago when our family decided to go on vacation. It is clear that he was going to leave the house. Our dog kept stirring all packaging bag, and a general rush to last-minute details.
Just before we were ready to leave we noticed that our dog, Sidney - a lovable cockapoo (Cocker Spaniel / Poodle mix) - to correct very strange and almost lethargic and lifeless. This is definitely a sudden change in personality and we are really concerned about him. My wife insisted that we bring him to the vet and find out if she suffered from Lyme disease or a similar fate.
When we arrived at the office of the veterinarian's, the first question is asked: "Are you guys going on vacation?"
How do I know;
see, Sidney is so sad that we left he chose to see the gays in this way.
Do not think for a minute that your dog has nothing to do with what happens in your life and your family members. Anxiety and stress play an important role not only in our own lives and the lives of our pets. It is no wonder that the high anxiety and stressful situations can sometimes lead to physical medical issues.
All these years I have many different breeds of dogs, many of whom brought with them causes anxiety and distress situations themselves.
We had a dog hit by a car, but lived to a ripe old age. We have experienced the destructive puppy stage, lost puppy stage, the "eat the furniture and father of favorite shoes" stage, and the difficult stage of physical resistance potty training. We had an emotional struggle of having to submit our animals when they can not function properly anymore. We have the experience, even the trauma of one of our dogs, with an ugly dog bite our neighbor.
My point here is that by adopting a dog that had experienced stress and anxiety from time to time. Just remember that our pets are not immune to trauma and stress, and to consider how to react when confronted with these kinds of trends.
On a side note, I would gladly endure the experience, the satisfaction of each of our companion dogs brought into our lives. Every dog has become a family member and deserves to be treated as such.
That's why I always say the importance of good nutrition for canines us by feeding a biologically appropriate raw food (BARF diet). Feeding your dog eat is designed to reduce unnecessary stress on the digestive and immune system and lead to a happier and healthier dog!