@hopeful33250 A complete PFT w/ Post Bronchodilator Spirometry. I need to be there at 8:30 tomorrow morning (Thursday). Sounds like a type of carnival ride. The scoliosis is starting to have pressure on internal organs. It happens. We are trying to figure out the fatigue and why I have a hard time getting enough air in thus causing my oxygen levels to be low which is new. Old age has certainly brought about many new things.