I've been dealing with chronic hypersensitivity pneumonitis, and lately, I've noticed some changes. My oxygen level sticks around 96-98, which is pretty normal for me, but a month ago, I got hit with COVID. During that time, I was mostly coughing with phlegm and felt really tired, but not much else. Now that I've recovered from COVID, I'm still feeling really worn out. I'm having a dry cough about 6-7 times a day, which never happened to me before, and my chest hurts a bit when I yawn. Plus, I've started feeling a bit of difficulty in breathing that lasts for 3-5 seconds. I used to be perfectly fine before all this. Any idea what's going on?