Well, I ended up getting kicked out of my mother's house (long story, many tears involved), so I sent the oxygen equipment back and moved to back Texas. My o2 levels are actually higher than I've seen in years even without the supplemental oxygen equipment, so there's that. I'm regularly about 95-97! No oxygen added! Yay! I'm working on getting back to truck driving, since my lungs seem to have straightened out. 🤞