My dd is 14 mo. Until about 2 weeks ago she has settled herself to sleep for daytime naps and at night. She even did this ok when she had 4 teeth coming through, although she would wake during the night. Recently though, if I try and put dd down she's happy and content, rubbing her eyes etc until I carry her over to her cot at which point she starts sobbing and desperately clinging on to me. I've tried leaving her to cry for 5 minutes, but often she absolutely screaming before I leave her room. Any suggestions?