I am sorry to hear of your ailments. How do you know you did not have Covid at some point? My husband and I both got Covid last March 2020. Mine never really cleared up, and he still has mucus that won't clear. I developed Covid again April 2021. This time, I can hardly function. Any work I attempt outside, and I begin hyperventilating and get short-of-breath, My Pulm told me yesterday to see a Psychiatrist for anxiety. You could hear me wheezing and struggling to breathe! This is going on and on. They have kept me on dangerous dexamethasone for over one month, and every time I go off, my breathing becomes impossible. I am at a loss too as to what to do. The moderator suggested a Covid experienced doctor, which is great. The one that put me on the steroid is a Covid experienced Pulmonologist. I hope you all find answers.