hi and pleased to answer you. All signs You are describing are found in COPD. Indeed, chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease of the bronchi most commonly associated with other diseases. It is characterized by progressive narrowing and permanent obstruction of the airways and lungs, resulting in respiratory discomfort. More than 80% of cases are caused by smoking. But as you say it radiation can be the cause. COPD is characterized by non-specific clinical signs: chronic cough, sputum, shortness of breath (dyspnea) and pain. These symptoms are often underestimated by patients. They appear gradually, insidiously, and worsen over time by increasing dyspnea. Some daily activities become more and more difficult to achieve and physical activity decreases, sometimes very importantly. This progressive degradation is punctuated by exacerbations, that is to say episodes of aggravation of cough, expectoration and dyspnea. These episodes may require unscheduled visits or hospitalizations. best wishes