Hey everyone. I am still perplexed about my weird lung symptoms. I recently failed another lung function test with an FEV1 of barely 50 percent. It was a bad day. I was sick from one of my other illnesses and puking, so I don't know how that played into the whole test. The lung doc said I need to start Stioloto again and I disagree as I am not out of breath. It's more of feeling oxygen starvation for me than it is huffing and puffing. I have one doc who claims my lungs are good because I blew one FEV1 of 73 a few months ago, and this particular doc has me in bad shape. I had purchased a home FEV1 tester and I was able to blow FEV1's all over the map one day; but never above a 70 percent, and most were FEV1's of 2.80, just like I blow during all of my lung function tests. I did a 6 minute walk test and my oxygen dipped down to 91 for 10 seconds half way through the test, then we stopped and it went back up to 96. I don't know what this means, but they said it was fine. My heart rate can go up to 150 BPM at times from walking, depending on how fast I walk. If I could have walked faster, they would have seen more. I can't walk fast as my right leg is damaged from chronic blood clots. Just walking for 6 minutes made my leg swell and I was in pain for three days after that. So, pushing it even more would have made me have to double up on my daily allotment of pain meds. I'm seriously considering getting a third opinion just to be sure. I was a smoker for 15 years and grew up for 20 years in a smoke filled house. My grandmother died of COPD and my aunt died very young of COPD, but she smoked 3 packs a day. I'm barely 40. I just don't know what to believe because my HRCT scan was completely normal, and my chest X-Ray was completely normal. I don't see how you can have moderate/severe COPD with normal looking lungs. I can tell you that before I stopped smoking, I did have a lot of coughing spells and lung infections. Some of them lasting for up to 8 weeks at a time. Any how, I wish I knew what was going on. I still have some Stiolto left over. I don't feel the need to take it though. But the nurse said I need to use it even when I feel good, because it will help preserve what lung function I have left. Does this make any sense? Thanks for any advice you can offer me. I hope you are all having a good weekend.