Out of nowhere just about an hour before I was going to break the news to my coach that I was stepping away, it hit me. I donated blood the Wed before. I wasn't really sure at that epiphany moment what that entailed but I set out to research. I started with the sites that went over what to expect after donation, nothing, the only thing they covered was not working out right after. I googled some more, then I found a few articles on what I was looking for. Bingo. Despite not many studies done on the entity, the science, math, and physiology were laid out in perfection. Basically your hemoglobin levels don't completely reset for at least 60 days, which in turn affects the level of iron your blood stores, which then affects how your body transports oxygen to the organs/muscles, which then affects performance. In a nut shell.
With that knowledge in hand I was able to take a step back and not throw my true love away with a single toss. A relief to myself and other supporters around me.