I, also had very low iron levels, 90 days after Auto SCT. My Bone Marrow Biopsy, at the time,, also said "no iron stores". I recieved 2 iron infusions, and my iron levels have been normal since then. I also developed hypo thyroidism, found after the iron was corrected, and am now on medication for that. My thyroid level is coming down, but I still have fatigue and weakness, which is a side effect of my high dose maintenance, Pomalyst. The chemo and then the SCT did a number on me. I nap when I feel like it. I was told last week, that I have reached Stringent Complete Response, so our prayers have been answered. I am a long way from my normal, but take one day at a time. I hope they find, and correct your wife's issues. Best wishes to you both!