Pops did that falling off a ladder doing lights once. In his late 50's. Motherfucker walked it off and finished his lights, just went however many months with obviously broken ribs. I don't know how. I bruised one and couldn't breathe without thought-breaking pain for a good few weeks.
Yeah it very much hurts to breathe deeply now. Just gotta not exert myself too much. Indeed amazing I did not die. I guess all my fat blubber saved me from hitting my head, lol.
If it was my bony ass falling like that, it would be a concussion minimum.
I can really only give you one tip here. Anything that can help the pain/inflammation, helps you breathe better. The effect on breathing makes it way worse. It's easier for oxygen levels to dip and add regular fatigue to the pain fatigue. Even icy hot can help a lot. Nothing really beats actually icing it, though.
It definitely continues to help. You just can't do it all of the time, just a few times per day < 30 minutes each. Still good for inflammation and healing rate.