There are many different causes for fear or anxiety. A dog may become fearful because of one traumatic event, may be genetically shy or fearful, lack of structure and leadership, or not properly socialized. As with people; problems result when the brain and energy are underutilized. Fear is usually a progressive behavior; they can continue to become more sensitized to the stimulus. Shy, fearful and insecure dogs all lack trust. All these dogs can benefit from confidence building.
Just as with us, a fearful or anxious dog does not choose to be in that state of mind. Long-term exposure to stress hormones can cause self-mutilation, increased brain aging, obesity, gastrointestinal problems and damage to the heart.
Take it slow. Let her learn about things at her own pace. Allowing her to sniff can relieve some anxiety. If we push her or overwhelm her, we will make the stimulus even more fearful. Do not baby talk, cuddle or pick up your nervous dog, by doing this we can reinforce the behavior. Once she is calm, then she can get attention.