My baby is 5 weeks tomorrow. And he won't sleep. He only seems to be falling asleep on me, and as soon as I put him down he refuses to sleep. I can tell he is tired but he's constantly got one eye the slightest bit open. He's also being fussy when he eats (BF) keeps pulling and tugging. And when I put him down he wriggles and grunts. I don't understand why he doesn't want to sleep. Up until yesterday he was doing quite well. His nappies are constantly wet and he poops every 2-4 days, and even they look normal. I'm so tired and exhausted I just don't know what to do.