There are many reasons for foreign body sensation in the upper part of the left chest and also congestion, such as heart disease, gastroesophageal reflux disease, chronic obstructive pulmonary disease and so on. 1. Heart disease: such as cardiomyopathy, coronary heart disease, etc., there may be palpitations (rapid heartbeat, often accompanied by panic), chest tightness, chest pain and other symptoms, and sometimes there is chest congestion. 2. Gastroesophageal Reflux Disease (GERD): Due to frequent smoking and drinking of alcohol, eating irritating food, etc., which leads to inflammation of the gastroesophageal mucous membrane caused by damage to the gastroesophageal mucous membrane, symptoms such as pharyngeal discomfort, a sense of foreign body or blockage may occur. 3. Chronic Obstructive Pulmonary Disease (COPD): a group of lung diseases characterized by airflow limitation, characterized by persistent respiratory symptoms and airway obstruction, symptoms such as chest tightness, shortness of breath, and foreign body sensation will occur. Foreign body sensation in the upper part of the left chest and also congestion is also seen in other causes, should promptly go to the hospital to identify the cause, under the guidance of the doctor standardized treatment.