To start off I am on TRT 200mg / wk. Taken Sunday and Wednesday I have sleep apnea. I had it before starting TRT. I know they are not completely accurate but for argument sake lets say they are. I have a smart watch that shows my O2 averaging around 93% overnight while on a CPAP. Sometimes it dips into the 80s. Iron 70 ref range 38-380 ng/ml Ferrintin 70 ref range 50-180 mcg/dL Iron Saturation 22% ref range 20-48% Iron Binding 322 ref range. 250- 425 mcg/dL Hemocrit 52% RBC 5.87. Ref Range 4.2 - 5.8 Million/uL Could my red blood cells be dumb/broken and not taking on O2 like they should so my body has to make more of them? Could it be that, for me, my Feritin and Iron is low so my body make more RBC. You know when your T gets low but in range, yet you feel like shit.