Since having a stent placed in the right artery of my heart, I began to experience shortness of breath. It has continued for six weeks with visits to doctors and urgent care. A VQ Scan and Respiratory workup show lungs are clear and healthy, An upper G.I. showed no involvement of stomach or hiatal hernia interfering with activity of lungs. Cardiologist says my heart is not the cause. I am tired, feel like I have the flu, no energy, and have been experiencing some angina.