M.R.
Sounds like the infection is gone and you just have lingering symptoms. I had bronchitis three times in about a year after never having it before. I ended up with some major but undiagnosable breathing issues where I struggled to actually get enough air into my lungs (I could tell the volume was not normal when I exhaled) and I got dizzy to the point of nearly passing out several times. My doctor ended up having me on an inhaler for a while, which slightly helped, but even a chest x-ray did not show anything. It eventually went away on its own but it was really awful for a while.
When my middle child was recovering from RSV he was hacking up clear, sticky mucus, and my husband frequently has lingering coughs with mucus for weeks after antibiotics for bronchitis. (He has asthma as well.) So, all in all it sounds like you're over the infection and just stuck with the after-effects. :(