I went to the University of Ky. and had lung function tests, a bi-lateral chest x-ray and blood work. I had same tests there in 2016,and there was no change. Actually improvement in my lung function! Dr. Said I could breathe room air while inactive, maybe cooking, etc. He did not recommend a transplant, but I will go back in 6 months for a check. I went to my pulmonologist. Week later, and my lung function test showed improvement there, as well.