I had a quad bypass 15 years ago -- have had occurances of chest pain periodically since then. Recently -- last 3 weeks, increasing episodes of chest pain -- left chest/back -- heavy feeling. Comes and goes. exacerbated by stress! sometimes exacerbated by exercise, sometimes not. Occasional dizziness, especially when other symptoms are present. Occasional sweating with left arm pain and jaw pain when other symptoms are present. BUT -- no pallor and no signs of cyanosis on my lips or cuticles.