I, too, think it's mouth breathing. The high is set to 15, and I believe that's too high. The sleep study doctor said I function well at 11 since I don't sleep on my back. I don't know how to change the pressure or even check to confirm what it is. I have to go through the company to officially adju...

I spit up bloody mucus every morning. A couple months my unit quit and I went a month without using one. I had the same bloody mucus each morning. I've had chest Xray = AOK. Just went to the dentist = AOK. I do have a low CBC, complete blood count but OK in iron and B-12. I'm now wondering if I'm bl...