Lacking Confidence in Self and Future
Anxiety is an emotion characterized by feelings of tension, worried thoughts, and physical changes like increased blood pressure. People with anxiety disorders usually have recurring intrusive thoughts or concerns. They may avoid certain situations out of fear and worry. They may also have physical symptoms such as sweating, trembling, dizziness, or a rapid heartbeat.
Adapted from the Encyclopedia of Psychology (http://www.apa.org/pubs/books/4600100.aspx)