Welcome to the forum. More likely is that the weight loss has affected the way the mask fits your face especially when you are on your side....causing leaks...that's the fluttering sounds you hear. Thank you. The odd thing is there were no leaks that I could feel or hear. It's like the seal was thr...

I've had my current CPAP machine for about 2 years now and have had no trouble until recently. Occasionally, I am awakened by my mask fluttering on my face when I exhale. I have an analytical and logical mind, so I tend to "test" my breathing at that point. I generally sleep only on my left side. I ...