One of the first things I did when I had my own health insurance was talk to the doctor about the periodic chest pains that had plagued me for years. He listened carefully then grabbed the cardiac specialist in the practice to consult with him..
"Not consistent with any known form of heart disease, but a textbook description of panic attacks."
I learned some meditative breathing techniques and started using them whenever I experienced chest pain. I radically reduced my overall stress level in the process and began what has become a lifelong process of calming the fuck down.