After my research I am wondering if my CPAP machine is doing all the damage. Dry air is blowing into my lungs all night,everynight. It can worsen COPD & bloat the belly. I can say,my health deteriorated even further after using the CPAP machine. I use it for Sleep Apnea,but now it seems to be doing more harm than good. So I ordered a lung exerciser from Amazon. I might spend this week off the CPAP. I do have some breathe easy drops. I also need to dig out my exercise peddler & use it daily.