Finding ways to deal with it are the key. For me, that came by consciously choosing a different thought...something soothing or even distracting. Engaging in something that would take my mind to another place...a better place where I could breathe has been quite an enlightening experience for me. Some days, that time in the "better place" was short but it was something! Gradually, I have found ways to stay there longer. What a gift I have given to myself! Be gentle with yourself as you go. You will learn so much and find that the power within you is far greater than you ever would allow yourself to imagine.
I'm so glad you felt at ease reading your poetry...you seemed to be in the zone. :) Keep up the inspiring work!