My tiredness is getting worse and worse and worse, too, although my iron levels are fine and all the other nasty symptoms have fizzled out by now. Remember this from my last two pregnancies, though, where the tiredness unfortunately never left me at all. Good preparation for the sleepless nights to come, at least! Great thing that you got signed off work for a while! My work haven't been very accommodating so far, but I'm hoping that once I've got my risk assessment (sometime in the next few weeks, hopefully) I'll be taken off night shifts. Not that it's very likely - but a girl can dream, can't she...