I was diagnosed with MAC in January. Have had no real symptoms other than fatigue for several months. About 2 weeks again went to Busch Gardens and rode on most of the roller coasters. I felt like I got whiplash from one of them. The next day I felt like I was in a car crash. My felt major tightness and pain in my lungs and upper back. It has gotten slightly better but still quite painful. Not sure if the disease is just now showing symptoms or if the rides caused damage to my ribs and lungs. Has anyone experienced such a thing? Wondering if I should have another CT done to check it out. I have not begun the big 3 meds yet. Just doing nebulizer, aerobika and exercise each day.