The past week or two Ive been experiencing a very slight heaviness in my chest when I lay down.  I also feel ever so slightly SOB like Im breathing to shallow and need to take a deep breath or yawn...but sometimes its a little difficult to yawn or breath deeply
Thanks for your question on Chat Doctor. I can understand your concern. In my opinion we should rule out bronchitis in your case. Because bronchitis cause similar symptoms like heaviness information chest with breathing difficulty. So better to consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test). PFT is must for the diagnosis of bronchitis. It will also tell you about severity of the disease and treatment of bronchitis is based on severity only. You my need inhaled bronchodilators and inhaled corticosteroid (ICS). Don't worry, you will be alright. First diagnose yourself and then start appropriate treatment. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.