It takes a while to " grow" new red blood cells. You make about 1/120 of your total red blood cells each day. They live about 120 days. You need B12 to help you use the iron to make healthy blood cells. Either get a shot or get some sublingual ( bypasses your messed up intestines).
Thanks for your reply. My B12 levels are in the normal range so thankfully, nothing to worry about it there.
Two days in now and woke up today feeling absoluetly exhausted. I'm pretty sure it wasn't the drugs that they give me prior to the infusion because I was totally fine the last two days. It's almost as if I have a flu / fever. Anyone else experience this?