My lg is 13 months old and had been sleeping fine up till now. Last weekend we went away with all the family and she was very clingy to me the whole time we were there, crying if I went out of sight for a second. Now since we've been back her sleep at night is horrendous. Right now she has been crying for the last hour and a half and I can't seem to do anything! If I go in and hold her or rub her back she calms down but as soon as I leave she is screaming again. It's driving me nuts, I don't know what to do. Can anyone offer any advice please?