The day after I give blood, and for the nest few days, I feel great. Apparently many people report this phenomenon. I attribute it to all them new red blood cells. But maybe its just mental.
I like to get the stats:
50% Iron count - at the very high end of normal (good)
60 resting heart rate - I'm really happy about that
110/70 pressure - not bad for an old guy
I'm glad they don't take cholesterol counts. Historically, my blood, though freeflowing, is just this side of gravy.