Thank you for replying. My doctor recommended nothing further at this time and said I likely have some bronchitis or a cold. I do not know if I feel like I have a cold, but I definitely have a sinus drainage and a sore throat. My biggest concern, whenever I get an x-ray, is cancer, though I am not at risk and only paranoid. But in your opinion, is that a concern? I also recently had a cardiac MRI, which said my heart was functioning fine. So, I am not too worried about pulmonary hypertension. When you recommended a scan, was that to screen for pulmonary embolisms?