A feeling of anxiety in a dream can be a sign that you are repressing feelings of anxiety when you are awake.
This can be because you are in a troubling situation, but you are in a position where you must act rather than dwell on your fears.
You may also be in a state of shock, in which you are unable to connect consciously with your emotions.
Sometimes, being anxious in a dream can be a reflection of feelings of anxiety in waking life.
A dream of being anxious may be a warning about a threat that you have been ignoring in waking life – your unconscious is trying to tell you that you have something to be anxious about.
Sometimes, physical symptoms, such as rapid breathing or heart palpitations, which are associated with anxiety can manifest themselves as feelings of anxiety in a dream.