@jillsart how frustrating for you. 3 months is a long time to wait for direction. The best I've learned from this group is we need to be proactive and sometimes aggressive in getting answers for our treatment. First, if it were me, I would want (ask for/sign release for) my own copy of the CT disc and radiology report, that way its handy if you walk into another physicians office. Plus, you want to know for yourself exactly what it says. Call or stop by your primary doc's and ask him/her to talk to you about the findings. Ask if he/she has had experience with whatever your CT report says and if not, make a referral to a lung specialist ASAP. Check w your insurance. I don't need referrals, maybe you too can make that appointment yourself. Somewhere along the line, and soon, a sputum sample will be needed to test for bacteria.
Depending on your location, it may prove a challenge to find a doc who is knowledgeable about your condition, but a simple sputum CAN reveal if you have MAC/MAI.
I know you're tired but if you can get going on some phone calls you will feel more in charge of your health.
Tell us where you are, someone may suggest to you a doc they use.
Praying for courage and answers.