There are many other that might mimic as a heart attack, hope this helps you out: Chest Pain Skin and subcutaneous lesions [including adiposis dolorosa, thrombophlebitis of thoracoepigastric vein (Mondor's disease)] Breast lesions Fibroadenosis Chronic cystic mastitis Acute breast abscess or mastitis Carcinoma Musculoskeletal disorders Bruised or fractured rib Periostitis Periosteal hematoma Costochondritis (Tietze's syndrome) Slipping costal cartilage Intercostal muscle “stitch” or cramp Intercostal myositis Pectoral or other muscular strain Shoulder girdle disorders (e.g., subacromial bursitis) Cervical disc herniation Dorsal spine osteoarthritis Thoracic outlet syndrome Neuralgia Herpes zoster Tabes dorsalis Neurofibroma Neoplasm Pericardial disease Pericarditis Neoplasm Congenital absence of left pericardium Mediastinal disease Mediastinal emphysema Neoplasm Mediastinitis Cardiovascular disease Acute myocardial infarction Angina pectoris Aortic valvular disease Hypertrophic cardiomyopathy Mitral valve prolapse Acute aortic dissection Thoracic aortic aneurysm Myocarditis Primary pulmonary hypertension Ruptured sinus of Valsalva aneurysm Pleural or pulmonary disease Pleuritis of any etiology (e.g., pneumothorax) Tracheobronchitis Pneumonia Pulmonary hypertension Pulmonary thromboembolism Neoplasm Bronchogenic carcinoma Metastatic tumor Mesothelioma Other parenchymal lesions Gastrointestinal disease Esophageal lesions Esophagitis Esophageal spasm Mallory-Weiss syndrome Esophageal rupture Foreign body Carcinoma Zenker's diverticulum Plummer-Vinson syndrome Peptic ulcer disease (with or without perforation) Gastric distention Gastritis Biliary disease Acute cholecystitis Biliary colic Distention of the liver Pancreatitis Subphrenic abscess Splenic infarct Splenic flexure syndrome Thyroiditis Psychogenic causes