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Physical symptoms of test anxiety include sweating, shaking, rapid heartbeat, dry mouth, fainting and nausea. Milder cases of test anxiety can cause a sense of butterflies in the stomach, while more severe cases can actually cause students to become physically ill. Cognitive and behavioral symptoms can include fidgeting or outright avoidance of testing situations.
Anxiety can cause a lot of extremely unusual symptoms. In rare cases, anxiety may cause a feeling of having swollen lymph nodes or swollen glands, and for those with health anxiety, this sensation can be incredibly frightening. Interestingly, it's unclear if anxiety or stress actually causes swollen lymph nodes.