My husband had an aortic valve replacement and a mitral valve repair in late March. The mitral valve repair didn't work and he had to have it replaced in late September. Then in February he had surgury to bring down a paralyzed diaphragm that way lying on his lung. Since the suregery in September, he has complained about an extreme tightness in his chest, to the point where he is miserable. He is tough and not a complainer. No one seems to have any idea why he has this tightness.