I was diagnosed with bronchiectasis in March 2017. I have very few symptoms, no coughing or breathlessness. I do get really tired and have to limit my activities some days. My concern is that my oxygen saturation levels fall at night when sleeping. Most nights it is between 80% and 84% but it has dropped to 78%. Should I be concerned about the possible damage to organs and tissues. I also have fibromyalgia and the flare-ups have dramatically increased since I was in hospital with the chest infection that caused the bronchiectasis. Is the lack of oxygen causing the increase in flare-ups?