From Very Long Time, I Am Feeling Anxiety Issue At

from very long time, I am feeling anxiety issue at very high level. Whenever I talk in group or talk with new person, I feel heaviness. When I drive in heavy traffic,i get worried. Sometimes,i feel my breath has stuck. I am getting less oxygen in my brain and body.
I am start sitting with one of psychiatrist. He is just talking to me from last three session. What else can I do to recover from this.