Hi, there are several causes for fatigue you reported, some linked to copd and others to heart.
The COPD is a progressive disease that makes it difficult to exit air from the lungs and needs quite strict treatment not to worse. The treatment can be done with medication,
smoking cessation and in advanced cases to the use of home
oxygen therapy.
The cardiac causes are related to losswhen there is loss of contractile function of the heart loses some of its ability to pump blood forward and liquids become accumulated in various parts of the body, especially the lungs, causing
pulmonary edema. This fluid accumulation in the lungs is responsible for the sensation of breathlessness. This condition is known as
heart failure and there are several treatments for this problem, including
cardiopulmonary rehabilitation, medications and visits by multidisciplinary team.
I suggest you contact your cardiologist for further information and determine which therapies are needed to solve the problem.
Hope I have answered your question. If you have any further questions I will be happy to help you. Wish you good health.