What a coincidence that my first name is Katherine/Kathy. I was just diagnosed with MAC, found out via a phone call from my Mayo doctor last night. I have been coughing for over 14 months and I just kept trying to get someone to tell me why….. Now that I have the diagnosis, what do I do? My first reaction was to try to get more information and that is how I stumbled across your posting. My doctor, Dr. Mullen at Mayo in Rochester, is a very nice man and he explained that some of the side effects of the treatment can be worse than the disease. So, I rejected the idea. When I saw your post saying that the reality may not be as bad as the hype, it gives me a different perspective. Would you be willing to share more of your experience with me? The doctors can only tell you what the books tell them unless they have had a patient who has gone through the process. Even then, different folks can have differing reactions. I am a 58 year old, recently retired (in part due to the coughing with the embarrassing results), I am overweight so the shortness of breath was attributed to that…..