One of my twins (15 months) is very high maintenance. She will often happily play with toys (is interested in a wide range of toys) if she can't see me or my husband but once she sees us, she will hysterically cry until we pick her up. We are on holiday at the moment and we've barely had a moments peace. She has hysterically cried for a great proportion of the time, really ruining family time. I don't think there's any deeper issue-(ie physical)-she eats and sleeps well and does not behave like this when with my au pair. Even one on one time with her is ruined-when she's with me she's only happy if sitting on me and me reading to her. This is unsustainable-I also have her twin sister and 3 year old son-and need family time to be pleasant! I've had advice to ignore her cries and only reward 'good' behaviour but this means having to withstand a great deal of crying..
Any help much appreciated!