They're right, exercise is at least part of the answer. Talk with your doc about getting a referral to a good Pulmonary Rehab program; NOT cardio rehab, but Pulmonary Rehab. There's a big difference; in Pulmonary Rehab you need to pay attention to 02 saturation levels and don't get hung up on heart rates unless you also have a heart problem. In PR, you'll learn how to exercise and how to push yourself a little over time so you increase the intensity of the workout.

I walk at first I could only walk barely 10 minutes. Now I'm up to an hour but it's very hard. It's slow going plenty of stop and goes but gotta keep going. I use oxygen at night for sleep. I have severe COPD and several noduals in my lungs.

Or see if you can join a pulmonary Rehabilitation place

Do you have a lung doctor.Try to get exercise when you can and try the breathing threw the nose and blow out threw the mouth. Prayers for you.

My husbands Dr gave him eloquis ( inhaler) and he takes it twice a day.... Seems to work for him..... he had his left lung out due to cancer