No weigh-in today, but good news! The new liquid iron supplement did the trick, in spite of the fact that it tastes like honey-dipped rusty nails and has six carbs per dose.
I brought my hematocrit up from 37 to 41 in one day! I was able to donate plasma again this morning. It is important to stay on schedule, because they give you bonuses for donating twice a week consistently.
I expect to be out of the 140's by early next week.