Though depression is thought of as a ‘low energy’ type of state, it is very often accompanied by symptoms of anxiety. Depending on the individual case, sometimes it is depression that eventually leads to additional problems such as anxiety, perhaps from a feeling of helplessness about being able to change one’s life to avoid being depressed. In other cases it is anxiety that begins to show up. After a period of time the anxiety develops into depression because the person feels as though he or shoe is trapped into anxious feelings.
Generally though, depression and anxiety disorders are quite different issues. One of the reasons that they are so often confused by the layperson is that they are often treated in similar ways. Many of the same anti-depressant and anti-anxiety medications are prescribed to those suffering from either disorder or even a combination of the two.
It has been estimated that around 85% of all major depression (as opposed to bipolar disorder, a.k.a. manic depression) cases are accompanied by symptoms of mild to acute anxiety. For the most part, the anxiety portion of combination symptoms comes as a diagnosis of generalized anxiety disorder. In this same study, about 35% of this group had symptoms of panic disorder.
Because anxiety and depression go together so often they are generally considered to be the linked twins as far as the biggie mood disorders go. Unfortunately depression is takes longer to treat when it is accompanied by anxiety. Many of those who have suffered from depression with anxiety claim that it is the anxiety that they feel is the difficult and lingering part of their ailment.