I am so exhausted it feels like I'm hungover or recovering from the flu. DS is 14 months old and sleeps through most of the time but has been terrible recently and was waking up every 20 minutes from about 10.30-3am last night. Had to get up at 6am so I am bloody exhausted. It's all well and good when I was on maternity leave but how the hell am I supposed to cope at work with very important meetings to attend today?! My boss already thinks I'm underperforming since my return to work so I can't afford to show any weakness. Urgh. 