What you are describing is anticipatory anxiety, where you are worried and fearful about being anxious. This fear of anxiety itself then tends to make the anxiety worse, as you fear the anxiety, and you fear the bad things associated with it, such as physical symptoms of anxiety (chest pain, butterflies in the stomach, trembling, lump in the throat, etc.). In addition, you may be fearful of the social consequences of your fear of anxiety, such as avoiding situations or people that make you anxious. The best way to get over the fear of anxiety itself is to break the negative cycle of anxiety. You have to identify what makes you anxious, and you have to stop the maladaptive behaviors (such as avoidance) which only serves to continue your anxiety symptoms.