Spuddles sounds like you indeed need to rest. When i had my first baby i worked full time. I found eating food that is healthy,natural that doesnt cause blood sugar spikes is great,getting fresh air and also putting your feet up when you can.
I too had anaemia and was meant to have iron needles but i never did.I use to take the tablets now and then. If your prescribed them do it and take them! You will feel a whole lot better. My low iron was to do with entirely something different in the end anyway.
Not too far away before you get to hold your little one!