DS (4mo) has started sleeping 7-8 hours overnight, I'm not ill, I'm not pregnant, so why am I so bloody tired?! I don't mean a bit weary, I mean bone-deep, first trimester-style, need a nap by 4.30pm exhausted! I'm willing myself to stay awake to do DS's last feed which is usually midnight, but I can feel myself nodding off. This has been going on for a couple of weeks now. I've tried doing more exercise as I know this usually increases my energy levels and helps me to get a better quality of sleep - I've done a 5 mile walk along the seafront with the pram this morning and swam 1km this afternoon. I could cry, I was so looking forward to not feeling shattered all the time once DS stopped demanding food constantly!