hi there,
my DD is 2.5 yo and had been sleep trained when she was 5 months old. since then she was a very good sleeper. over the last few nights she started screaming hysterically and can go on like this for hours. we have done walk in /walk out for the last 3 nights but don't see any improvement. It seems to reinforce the screaming as one of us always comes back into her. she has a 6 months old sister which probably doesn't help the situation. she is quite jealous of her. she started doing this at nap times now too and I have to attend to the baby too. so Im not sure how we can resolve this? any ideas?