I dont know if this would work, but if she is scared of you leaving and likes when you read to her, could you read a few books she likes onto a CD or tape and put them on when you put her to bed? So that she can listen to mummy even though you cant being there with her?

I have nothing! lol

I hope it gets better for you really soon, you need some space and time to yourself, I hope you get it soon! In the meantime have a