Every now and then, I feel severe tightness and burning in my triceps, cross my upper back, and in my upper chest. This pain and tightness only lasts for about 45 seconds. Then it relieves itself. Only happens about once a week, normaly, when I m standing still. I m in great health, male, 57 years old, weigh 160, excercise daily, take Lipitor, cholesterol is 163.