Hi Pegs, I too live in Tucson - well, Catalina a bit north of Tucson. I was just diagnosed last week with MAC. Had pseudomonus last year. I am trying to decide what to do. My pulmonologist told me of the 'cocktail' of 3 antibiotics but I'm hesitant to start that. I''m 85 years old, have lead an active life, hiking, etc. Now scoliosis/stenosis limits my mobility. I've had asthma since my teens. Cheering you on as you journey through your life. Just being connected to this support group has helped me not feel so isolated. Thanks for sharing.