My husband has difficulty breathing especially after he eats. He has asthma which is being treated for and he also has a hiatal hernia.He has had chest xray, bloodwork, lower and upper G.I. ekg, endoscopy, stress test. etc. The docs say they don.t know what it could be but they are scheduling him for a pulmonary function test. He has hypertension and a pacemaker. he sometimes has a dry cough. He has a gurgling sound in his lungs after he eats which I can hear just sitting beside him but the docs say his lungs sound clear. Can you help me? PLEASE!