My dd is almost 5mnths old and will only sleep in my arms or in a "kango" pouch. She used to fall asleep very easily in her cot but would wake after 30 mins and only go to sleep again if I hold her. Now she won't even fall asleep if she's not being held. Even the car and pram don't work. I'm at the end of my tether as my back is getting sore and I have a 2yr old who needs entertaining too. Even while awake she won't play happily on her play mat for long before she wants attention. Any ideas??