I am living proof if you over donate blood, you WILL tank your ferritin. My PCP caught it, and sent me to a hematologist. After she tried to talk me out of stopping HRT, and I refused, she agree to work with me, to try to figure out how to get some iron back without driving my HCT and HBG thru the roof. It's going to be a long process and take time. I was donating every two months, because I thought, stupidly, that if the Red Cross says its ok, it must be ok...NOT. So, we are trying to donate every three to four months, letting HCT get up to 53-53% and then donate. While not pushing iron, because doing so will in all likely hood, drive HCT up faster. She also suggested, that because my platelets are on the low side, 150K and our lab low normal is 140K, that is helpful for reducing risk, for me. So I am now at 3.5 months and due to donate. I will likely also have to reduce the T dose, which will be ok, as I am pretty high. Total is 1100, free T is twice the normal upper limit, and DHT is well over the limit too. But, for me, it did something I really wanted, it drove libido significantly. (thank you DHT). How do I feel? I feel fine. Have since the beginning, and felt a little better each time we increased the dose of T. But my hormonal doc says, we can gradually reduce if I want to. No pushing me, only my PCP is worried, even the hematologist isn't terrible worried. I have also lost 40 lbs since starting on T a year and a half ago. My lipid profile is greatly improved, as well as A1C. I have a personal goal to lose another 24lbs. My ED is greatly improved as a result of everything else, plus the other meds, and work I have done to help myself. So, I think they all know most of this, and know this kind of improvement in one's total health doesn't happen in a vacuum. They now understand why I would not give up T unless some other good reason popped up. If I can keep from crashing my ferritin, and donate every 3-4 months for the near term, then so be it.