While depression and anxiety have distinct clinical features, there is some overlap of symptoms. For example, in both depression and anxiety, irritability, decreased concentration and impaired sleep are common. It is not uncommon to experience occasional and brief periods of feeling down and anxious.
Jamie Grill/Getty ImagesEach anxiety disorder has unique symptoms. Anxiety disorders are typically diagnosed when fear of non-threatening situations, places, events, or objects becomes extreme and uncontrollable.An anxiety disorder may also be diagnosed if you have general feelings of fear or worry that interfere with your daily life and have lasted at least six months.Most people with an anxiety disorder have a combination of physical and psychological symptoms.There is one symptom that all anxiety disorders have in common: near-constant fear or worry about things that may happen to you now or in the future.
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