Many times, the anxiety we feel around other people is a reflection of the way we perceive ourselves. This may be called projection and it can be seen as a common defense mechanism against the people who make us feel uncomfortable. If a particular person reminds you of something that is traumatic or triggers your anxiety, then it is possible that you may feel uncomfortable around them. In such cases, you may notice an increase in your anxiety levels or apprehensive thoughts around them. Even though a particular person cannot be said to trigger your anxiety; the ideas, things or notions you associate with them might induce those anxious thoughts in you.