Definition of "anxiety reaction" [anxiety reaction]

• An anxiety disorder characterized by chronic free-floating anxiety and such symptoms as tension or sweating or trembling or lightheadedness or irritability etc that has lasted for more than six months (noun)

WordNet. Princeton University. 2010.

• "Below are some warning signs that a child may be experiencing an anxiety reaction to incidents in his life and environment. complaints of unusual physical symptoms with sudden onset dizziness, difficulty breathing, tightness in chest, rapid heartbeat*"