I finally found a functional medicine dr. First meeting lasted an hour and a half, virtually. Only after I filled out 4 pages of questions. She had read all my detailed answers. Ordered all kinds of tests for me. Those tests and her expertise may lead to why I got MAC in the first place. Not even National Jewish could answer that. But leaky gut, unable to absorb nutrients has put me on a long, slow decline in overall health. As I sit here nebulizing 7% saline (no I lung infections for 18 months) I have hope, for the first time. Thanks, everyone for your advice, encouragement and sharing your story.