Thanks so much everyone for your replies! It's nice to not feel alone in the "always tired" stakes! To answer your questions, I have had all blood/sugar etc tests and apart from having lowish iron all is ok. I was almost anaemic for 7 months following DS's birth and was subsequently on iron tables for 9 months. My level a month ago was down from 95 to 60 again so maybe I should just take a supplement again for awhile.

I do two hours of walking each day, even if I'm working (work 3 days a week). I love my walks and feel crap if I don't do it and sometimes it perks me up, other days I feel like I want to roll home asleep! haha

All of you have a good point! Think I just have to keep on rolling. I am a hopeless daytime sleeper and my beautiful DS doesn't sleep long enough to allow for one. I can't wait to have another bub and know there will be a time (probably many years down the track) when we won't all be exhausted! haha

Thanks again!!