my 10 week old is constantly crying and has been since about 4 weeks old. she's only happy when she's on my breast - I dont think she is actually taking any milk though, she's just on there for comfort (she won't have a dummy). it's really hard to get her to nap during the day as well as she just cries and cries when I put her down. I dont like to leave her to cry so most of the time I end up picking her up and cuddling her, and she may fall asleep on my shoulder. Any advice of anyone - i'm getting to the end of my tether and my shoulder and back are aching from carrying her all the time.