Just wondering. I have iron deficiency anemia and start IV infusions this week. Had six infusions in 2020 which helped with my symptoms immensely. Then they figured out my duodenum was unable to absorb the iron tablets I was on. I found a liquid iron formulation that since 2021 has helped keep my hct and hgb stable. Even been though i still take it apparently it is not working as well now. Had UGI which showed gastritis and inflammation that has been ongoing for a while. All that to say you might try a different formulation of iron to see if that helps. Good luck to you and I am sorry you are having such a hard time.