<s>[INST] I m currently having a weird feel mid chest. not pain but a heavy feeling and some air hunger like I can t fill up my lungs. last week my doctor did an emg and it was normal but ordered chest xray, stress test and echocardiogram which are scheduled for the end of the month. still having some shortness of breath some lightheadedness periodically. I m wondering if this is anxiety (already take Cymbalta) or something else? [/INST] Thanks for your question on Chat Doctor. I can understand your situation and problem. Your symptoms can be due to anxiety, but it is still early to stamp anxiety as diagnosis, because your investigations to rule out cardiac and pulmonary causes are still left. Chest heaviness, lightheadedness,shortness of breath, all can be seen Cardiac causes like heart failure, coronary artery diseases etc. and pulmonary causes like chronic bronchitis, pulmonary fibrosis etc. So get done chest x-ray, PUT (pulmonary function test), 2d echo and stress test to rule out above causes. If all the above investigations are normal than anxiety can be the cause. So consult psychiatrist for diagnosis and treatment of anxiety. Avoid stress and tension. Be relax and calm. </s>