Common causes of chest discomfort that are not indicative of heart problems include swallowing disorders, heartburn, injured ribs, sore muscles and panic attacks, according to Mayo Clinic. Other causes of chest discomfort include compression fracture, shingles, pneumonia and viral bronchitis, reports Healthline.
Chest discomfort can result from disorders of the digestive system, notes Mayo Clinic. Heartburn causes chest discomfort, and it manifests as a painful, burning sensation as the stomach acid moves from the stomach into the esophagus. The acid movement causes discomfort behind the breastbone due to the connection between the stomach and the throat. Chest discomfort can also result from swallowing disorders as swallowing becomes difficult and painful.
Chronic bronchitis can cause chest discomfort when the bronchial tubes that deliver air to the lungs suffer mucus buildup and become inflamed, explains Healthline. The viral chest infection that causes bronchitis causes chest soreness and pain. Shortness of breath, chronic cough, chest tightness and wheezing also contribute to chest pain.
Chest discomfort can result from nerve muscle or bone problems, notes WebMD. A rib fracture causes pain, especially when coughing or deep breathing. Muscle strain causes severe chest discomfort, especially when coughing hard, as the strain can injure or inflame the muscles. The discomfort in the chest worsens with increased activity.