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Anxiety is a feeling of unease, such as worry or fear, that can be mild or severe.
Our Health A-Z contains more information on Anxiety.
Chronic fatigue syndrome (CFS) causes persistent fatigue (exhaustion) that affects everyday life and doesn't go away with sleep or rest.
Our Health A-Z contains more information on Chronic fatigue syndrome.
Depression is more than simply feeling unhappy or fed up for a few days.
Our Health A-Z contains more information on Depression.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.