Today after my usual 17 minutes on the treadmill (slowly worked up to this) my oxygenation was 86, has been running 92, 93. Online I stumbled on a Danish company Airofit, A respiratory training device. My last sputum sample did not show Mac For first time in a year. Not coughing. Nebulize saline twice a day. Fatigue is still bad. Assume that’s my brochiectasis getting worse. I hesitate to make appointment with dr at UNC Bronch/Mac clinic because I assume they have plenty of serious Covid or post Covid patients to care for. Any advice?