if the tablets aren't working, ask your doctor to put you on ferrosig injections, they are straight iron. i know exactly how you feel, 3 months after matilda was born i was extremely exhausted, very depressed and anxious, blood tests found my iron level to be 8 (lowest it can be is 50). get on to this as soon as you can, it has really ruined the past few months with my babies, as my level is still very low, i have no energy and am quite depressed. the injmections are pretty good, but as someone else said, take vitamin c as it helps to absorb it. good luck!