I am 68. First round when I was 60 and 61. Second round at 66 and 67. We are all different when it comes to the meds, heaven knows. I have been lucky with no lasting effects. They also convert me to negative right away. But the MAI keeps coming back. At 68 there are things I am willling to do and things I am not. I will not lose my eyesight or hearing for this disease. I will also not spend half my time on a picc line. I never wanted to live to be old, old. I am not adjusting well to old age and always knew I wouldn't. I don't outwardly exhibit that, but my happy act is just that- an act. I think my dr. at Tyler, TX will send me to Dr. Mitchell for surgery this time. I am willing to do that with a few months of meds before and after. If that will give me 8 or 9 more good years I am content. If I have to lose my hearing to do that, I refuse to live those years in isolation and a complete nuisance to everyone. We all are masters of our bodies, not the doctors. My doc and I each know our limits and work together. I have post polio syndrome- possibly why I have MAC- so my legs are getting worn out. I am not fit at all. You are lucky you can really exercise. But I am like you. Keep thinking a new treatment will come out after all these years. Research seems pitiful.