This is @1jonwilcox, I had PF diagnosed in 2009. I am now passed the common life expectancy for PF. I am also a type 2 diabetic with mild high blood pressure and neuropathy on my right side. In 2007 I had a very mild stroke, affecting my optic nerve and the left side of my face. At the same time, I had a double bypass. The stroke got me to the hospital and saved me from a heart attack. They discovered the need for the bypass when I went in for the stroke symptoms.
I suggest you do deep breathing exercises. Breath in slowly until it is impossible to inhale anymore even if it is mildly painful. Hold it as long as you can. Then breath out slowly thru pursed lips until you cannot push out anymore. Do this 5 times a day, the last as your head hits the pillow. It helps me clear my brain and go to sleep, You can use a machine in addition and my doctor says to do that 10 times a day. When I do it, I do 10 times in succession. This has helped me immensely. My last CT Scan showed the fibers in my lungs are gone, but I still have COPD. My lung doctor says he has NEVER seen fibers disappear in any other patient. I have nasal congestion, mostly in my left sinus, which drips into my lung. Every night I use NeilMed Nasal Rinse squeeze bottle to clear my sinuses before bed. I also use a Fluticasone Propionate nasal spray and then Symbicort 160/4.5 inhaler with an AeroChamber plus Flow-Vu devise.
Good luck. Worry only about that which you CAN control. Jon Wilcox