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Symptoms of Anxiety. Symptoms of Anxiety: Introduction. The symptoms of anxiety are due to the body's reaction to stress called the fright, fight or flight response. This reaction developed in early human evolution as a means to increase alertness and readiness to react to dangerous stressors, such as the threat of a man-eating predator.
Anxiety attacks can occur causing intense feelings of fear, dread, heart palpitations, shortness of breath, trembling, and sweating. You may also show symptoms of violence, irritation, agitation and nervousness. You may also give in to unusual fits of weeping for no apparent reason.