My 15 month old has never really slept, well never slept a whole night in her one year of life but the last week when I have put her down for a nap during the day or up for bed at night as soon as I leave the room she will scream the house down and she won't stop, and whenever she wakes in the night she will start screaming the house down, she gets in a real state , she is a really hard working baby any ideas has any one else been through a similar issue any help or advice would be great