When someone gets anxious part of his or her body called the sympathetic nervous system is activated. The degree of activation depends on the perceived level of threat. The greater the threat the stronger the activation. This activating response can be extremely fast and very dramatic. Many physical reactions take place but in terms of the stomach, digestion is not that important and the body’s resources are redirected. The stomach constricts and if the activation is strong enough the body attempts to expel undigested food. This can lead to vomiting. However, unless the anxiety is extraordinary it is unlikely. Almost always there is some stomach distress but involuntary throwing up rarely happens.
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Emetophobia: The Secret Affliction
Help for Kids Afraid of Throwing up or Getting Sick: Part 1
Help for Kids Afraid of Throwing up or Getting Sick: Part 2