Chest pain.. Is it dangerous? And when does it need treatment? Immediate aid? Have you ever felt pain in your chest and felt anxious? It could be just a muscle strain, or it could be a sign of a serious health problem! How do you differentiate between simple causes and life-threatening ones? Causes of chest pain: Digestive problems: such as heartburn or acid reflux, which are often accompanied by a bitter taste in the mouth. Respiratory infections: such as pneumonia, where the pain increases wit