<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have barrel chest and went for a checkup to see if i have asthma but the doc said no. I am having severe shortness of breath and even though i sleep more than average i still seem to be extremely tired. What should i do?  <response>: Hello and welcome to Chat Doctor.barrel chest has been associated with lung and heart pathology, but not necessarily. If you have shortness of breath and tiredness, please consult a medical specialist to use out valvular lesion associated. Ideally get your lung function tests spirometry and an ECHOCARDIOGRAPHY . Get an x-ray chest done also. Hope your question is answered. Take care and wish you good health. 