I'm thinking the third stage of the disease is a blood disorder that prevents blood cells from binding to iron to 'hold' the oxygen from the lungs.
Do you have different blood types? Might explain difference in symptoms.
I’ve read about how different blood types have different susceptibility to COVID which got me to thinking “I wonder what my blood type is?”
I went through all my medical records and couldn’t find it. I contacted my doctor and was told that they don’t regularly check blood type. Furthermore, they said it is an expensive test and usually not covered by insurance.
I thought we were all supposed to carry our blood type on emergency medical information cards in case you get in an accident and they need to transfuse you.
Needless to say, I was surprised by all this.