Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to recognize angina pains [title] Note a pain localized behind your breastbone. [step] The main symptom of angina is chest pain or discomfort, which is usually localized just behind the breastbone, or sternum. Typical descriptions of the type of pain include pressure, squeezing, tightness, and heaviness.

Ending1: Your chest may be itching, irritated, or tender, as well as you may have several other symptoms of inflammation. [title] Take note if the pain lasts long periods of time. Ending2: [substeps] This pain may also result in a difficulty of breathing. Chest heaviness is often described as an elephant sitting on the chest. Ending3: [substeps] While chest pain may not be related to angina, it could be caused by a combination of chronic pain and pressure. [title] Look for a pounding, irritation, or tension you feel in your chest. Ending4: [substeps] Pain is less intense when the pain is located in your lower abdomen. The pain is localized directly to the front side of your chest.

Answer format: ending1/ending2/ending3/ending4