Long hauler with lung scarring seeking advice

I couldn't lie on left side for 1.5yrs. Felt like I was about to pass out instead of normal going to sleep. Would roll carefully to right side and heart would pound loudly for a minute. Full heart echo was 95%+ normal. Doc has no ideas.

I am diagnosed with pulmonary fibrosis post COVID. Interstitial lung disease

Yes I have scarring on both lungs

I never thought in my life that I’d think about what it’s like to have healthy lungs. I can’t imagine having a long life with this being permanent. Its terrifying because I feel like if it got even a little worse then this, I wouldn’t be able to breathe. When even one inhale of someone else’s cigarettes enters my body, I choke for days.

I have lung issues from Covid I sleep with pillows to keep me from rolling too far over onto my stomach or I can’t breath well or flat on my back