Anyone on or have been on Breztri and what are your thoughts? My Doctor switched me from Trelegy yesterday. ( Trelegy was losing effectiveness and I was increasingly short of breath ) I took the first dose of Breztri this morning and feel anxious, nervous, wired but tired, and my heart rate feels fast although my pulse ox isn't showing anything concerning. Not a lot on the internet about this drug. Will these side effects go away? How long should I give it? So tired of feeling like crud. Maybe I should go back to my old school Spiriva and Advair. What are you all taking that is actually helping with few side effects?