My coughing blood history with bronchiectasis: Any suggestions?

when I was 17 years old, one day in the winter, I coughed up pure blood (it was pure blood without any other things from lung (no mucus, no green/yellow things) for 4,5 mouthful a day for a few days. and my doctor gave me penicillin, and I stopped coughing blood. A few weeks later, story started again and repeated for the whole winter and stopped in the spring.

to be clear, I didn't think there was anything like mucus or sputum from my lung, I believed it was pure blood that pushed me to cough, otherwise I won't cough at all.

6 months later, a doctor concluded that I have bronchiectasis and told me: do nothing and stay warm and exercise. I took it to my heart.

I have been jogging since, last 10+ years, jogging 3 miles minimum everyday.

Fast forward to 2022, I am 52 years old, on 3/2/2022, after a joyful jogging, shower, dinner, I felt there was something from my lung, for a moment, I knew it would be the blood and I knew the story I had 30 years ago came back: 4 mouthful of blood from lung.

3/3/2022 and 3/4/2022, nothing happened. For the record, I rarely cough in my life, last 30 years I probably coughed once a month.

3/5/2022, the coughing blood seems a lot more. I ran to ER at stanford in CA. The CT found a 12millimeter * 0.9 millimeter nodule in left lower lung, along with a ground glass opacity area (which the doctors believed to be blooding area). No markable bronchiectasis.

The doctors at stanford ran almost all the test, everything normal: they have never saw a coughing blood patient this healthy.

3/6/2022, AFB smear negative, 3/18/2022, MAC culture positive (after 12 days culture)
4/1/2022, PET/CT report the same nodule shrank to 0.6 millimeter * 0.4 millimeter, and nothing else markable, no malignancy anywhere in my body. No markable bronchiectasis.

Stanford did not do any bronchoscopy on me.

I probably can run 3 miles at full speed any day in the last 10 years, including during the hospital stay on 3/5/2022. The coughing blood continued like "on for 2 days", "off for 5 days", and completely stopped since 3/20/2022. However I still feel there is still something not right in my lower left lung but I cannot cough it out. and I only cough 2,3 times since 3/20/2022 ( this was a lot of cough compared to my history in the last 30 years)

other than that, sometime when exhale, I can smell some "old blood" smell, probably some small amount of bleeding in my left lung that cannot trigger a cough.

I felt better and better day by day, ever since I stopped coughing blood 3/20/2022.

by the way, if it worth mentioning, I am a 10+ years CPAP user for my sleep apnea, I love yard work and I do yard work almost every week.

this is my story, as a return of favor for this forum. Thanks to everyone who posted here.

I will see an ID next week who specialize NTM at stanford, but I think most likely I will just go with 7% saline, and some 6 month follow up with CT. I may choose not to do any bronchoscopy and lung wash.