Dd is going through a clingy phase, she won't go in the pushchair without screaming blue murder, when she doesn't want to walk she wants to be carried. My back is killing me from constantly carrying her around (I'm sure it's just a phase, she's normally quite independent but she's been ill and is quite whingey and tired at the moment) so is there a ring sling or wrap sling which is suitable for an 18 month old that will take some of the strain from my arms and back? Would one of those hip seats help or is there something better?