This is fascinating. I am a 43 YO female with no history of low iron. I donate blood every 3 months, and I get a physical with bloodwork done every year and my iron has always been on the high end (HGB ~14-15). I went to donate blood and was rejected. My HGB was 11. Went for blood workup, saw a hematologist, my ferratin was 2 and HGB dropped to 9. I even have iron induced PICA. Went for endoscopy/colonoscopy, totally normal. Tested for celiac, nope. I am starting 5 weeks of iron infusions on Monday.

I had my 2 Covid Pfizer vaccines in 2020 and early 2021. First Moderna booster in 11/2021. I had no issues with anemia. I had my second Moderna booster on 5/23/22 and was rejected for donating blood the first week of July.

Has anyone seen this pop up after 4 shots? And has anyone managed to convince their hematologist that this is real? I've read a bunch of medical studies (or I've tried to) and it seems like a simple course of prednisone could reverse this in some cases. I would love to hear from anyone who managed to get a doctor to buy into this, and figure out what that doctor did to confirm this diagnosis. Ideally I can figure out a way to safely continue getting this booster as time goes on.