Your anxiety in specific situations is perfectly understandable if you are aware of the thoughts or beliefs that fuel it.
Phobias
Anxiety’s Thinking Traps
When your fear is directed at things or situations that are not likely to be dangerous (for example, talking to an attractive person at a party, seeing a mouse, or having a scary thought) the adrenalin onslaught is unnecessary and therefore “Anxiety”.
Emetophobia: Terrified to throw up!
Phobias of vomiting are not unusual, but can be debilitating.
Exposure Therapy
Exposure therapy works best when you practice doing what you are afraid of and practice not doing the safety behaviors that give short-term relief at the expense of long-term well-being.