Complex sentence: One of the most common symptoms of COPD is shortness of breath commonly describe as: "my breathing requires effort," "I feel out of breath," or "I can't get enough air in".
Split into simpler sentences: One of the most common symptoms of COPD is shortness of breath. People with COPD commonly describe this as: "My breathing requires effort," "I feel out of breath," or "I can't get enough air in".