Karen, I can relate. Lately I was doing the same thing. My lungs felt irritated. I decided to cut back on 7% saline from twice a day to once a day. It's made a world of difference. I'm going to discuss with my pulmonologist. I think my lungs needed the break. And I had been doing twice a day with no problem for years. I'm not saying you should do the same and I don't know what you do for airway clearance but definitely talk to your doctor.
Cindy