Welcome to Mayo Connect, and our awesome group of people living with Bronchiectasis and MAC and sharing their experiences. I completely understand your anxiety! I would guess nearly all of us felt that way at first - at least you knew about the Bronchiectasis - when I was first diagnosed, I didn't even know what that was.

I would invite you to read this discussion among people who are also newly starting medication:
https://connect.mayoclinic.org/discussion/starting-the-big-3-terrified/
And also to browse our extensive discussions. Here is a search tip -If you go to the top of any discussion in this group, and click on the small "< MAC & Bronchiectasis" you will go to the list of all topics in our Support Group. Then use the "Search Discussion" box to enter a term or phrase of interest to you, and a list will appear. Second tip - at the bottom of each summary it says "Last Active: [date]" Choose more recent active dates to connect with currently active members.

I hope you find us a helpful group as you make this journey.