Hi, we have a 15 week old who was doing amazing in terms of development and everything, she was SUCH an easy baby. For the last two weeks she wont nap, she won't go down to sleep at night, all she does is scream and cry and both myself and my partner are getting so depressed about it. We honestly dread the evening as one of us is just sat next to her all night trying to stop her screaming - picking her up won't help, rocking her, shushing her, all she does is scream. She throws up constantly too and her sheets are just coated in sick all the time. She was put to sleep at 7 and she's still screaming now and we are both in tears as we don't know what to do. Please please can someone help us as we are both struggling so much.