Agoraphobia is one of the most common fear-related illnesses, and anxiety support organisation No More Panic has estimated that it affects 1.5 million people in Britain. So what are the symptoms of agoraphobia and is there a cure? The common phobia affects millions of Brits – and can stop people from leaving their house What is a phobia? A phobia is described by the NHS as an overwhelming and debilitating fear of an object, place, situation, feeling or animal. They are more pronounced than fears and tend to develop when a person has an exaggerated or unrealistic sense of danger regarding a situation or object. If a phobia becomes very severe, the person suffering may organise their life around avoiding the aspect that’s causing distress. Symptoms of phobias Typical symptoms associated with phobias can include: Dizziness, trembling and increased heart rateBreathlessnessNauseaA sense of unrealityFear of dyingPreoccupation with the fear object