Hi welcome to health care magic..... Here your physical examination including auscultation need to be done first.... Chest x ray and if needed spirometry useful in diagnosing your condition.... It could be bronchitis or any other restrictive disease like pulmonary fibrosis or infection like pneumonia if fever and cough with chest pain associated. You have not mentioned complaints in detail. So here examination will guide about which investigation to be done. If dyspnea present with difficult breathing then bronchodilator might given... If congestion symptoms then antihistaminic drug given. For your condition you can consult pulmonologist. Take care.