P.S. I sooo feel you on the scarring in the lungs thing. Parents smoke when we were growing up, then Moms remarried, and they smoked even more. They'd have adults over and we'd all be in the dinner table area and the smoke would fill-in from the ceiling downward... whenever anyone got up to leave the room for a second... it would cut a wake thru all the smoke! Alos that house was in Carson near 213th and Wilmington Ave. in-between the Mobil Refinery closeby... and the Wilmington refinery near to the 405 fwy.
On rainy days.. they'd crank up the burning stacks because they knew the rain would bring it right back down and so the AQMD laser spectrometers wouldn't be able to measure it right. Never forget this one day my mom swipes her finger across the trunk of the white Olds Cutlass and you can see the path thru the soot it cleared away! Plus Carson doesn't have the best air-quality cause it doesn't get like the on-shore airflows like I do now living 4mi from Pacific Coast.
Have had bouts with stubborn Bronchitis here and there over the years. And then OMG when CovID EFF'd me up for 2 months straight from Feb to April 2020. That isht was harsh as fizzuck!! All the coughing man... was like Mike Tyson had ya up against the ropes and was way-laying on your ribs! Was gurgling on inhale, exhale and even while sleeping. Finally started to pull out of it by the time these idiots called the first lockdown.
I'm still jacked up on the lower lumbar discs from all the inflammation it caused exacerbating some prior Traumas from Dirtbike/MTB/BMX crashes hammering that area. Got an MRI and have like 3mm, 4mm, and 5mm encroachment into the foramin space where the spinal column runs thru 'em. LImpin' along rt now with Tylenol w/ Codeine. Figure after Income Tax gets paid, finally schedule up with an Ortho doc my friend this BodyBuilder hooked up with. He was only down for like 2mo and he's doin straight now, so you know how that is, you wanna go with a known player that's had successes.