had to read your post quickly in the middle of dd climbing all over me lol. But I went through this after the birth of dd i'd lost almost a litre of blood and didnt think anything of it at the time. Once she hit about 5-6 months I was bloody exhausted. Turned out I was anemic! I could literally sleep constantly. So maybe get that checked. And if it's not that then it's probs just from being a mum cause they tend to wear us out!!! I was taking um.. a natural vitamin can't remember which one but it made me feel really good and have heaps of energy.