Long story short: tests show low Ferritin and low Iron (for years). I am not able to tolerate Iron supplements. I have tried several types, all oral, but I have never been able to stay on any of them without heavy increase in autoimmune symptoms. (Increased joint pain/stiffness, neuro-symptoms, daily migraines.) I have severe ME, and I have kept on trying as I am curious of how my body would function with normal levels. But I am about to give up oral supplements for good now. A crash after a few days trial can set me back for weeks and months. It is simply not worth it. My question: do you think injections would be tolerated better? Maybe an injection could be easier for a severely ill body to take advantage of? And maybe it could get my levels up faster and give my body longer intervals of rest between the setbacks, instead of a daily exposure. Please feel free to comment.