I’ve lived with MAC with cavities since 2015 and have had a healthy great life. Please be positive. Nobody would know if I didn’t say I just have bad lungs when implicit bad air situations and/or if I ever do overnighter with friends. I’ve done antibiotics twice in 9 years for one year each so far. Just finishing second time now. I do have slight growth again in cavity, so doctor may recommend prolonging antibiotic treatment or going on amikaycin. I’ve lost 10 lbs I don’t need to lose, but I try to keep up my muscle with good diet and protein drinks. Stomach problems with antibiotics is tough; they did take Rufampin out of the mix for me. Keeping my muscle up with weight training. I fret sometimes, but mostly I enjoy a healthy healthy lifestyle and life.