To auntnanny. Yes I did sputum testing 3 years ago and was positive for Mac. I have not had any recent testing but am due for a cat scan in June. My last scan showed that the Mac was progressing. At first my cough was very non productive, but after this last bout of bronchitis in November it became more severe and I do cough up mucus. It is difficult at work. I have to tell all my customers that I’m not contagious. I design kitchens and usually sit with them for a couple of hours at a time. I have recently gone to part time hours due to how tired I am and how much I cough. I do have to work though, even at my age of 71. I will check with your doc’s office tomorrow to see if I can get an appointment.