Tamara, after reading one of your posts in another thread (it broke my heart) I'm so sorry to hear that your having such a hard time sleeping. Of course I can't say I blame you and can't imagine what it would be like to be in your shoes.
I'll always be thinking of you and hoping that Delta's fate isn't what you fear and that some how someone took him in and he's safe and sound. Please don't blame yourself, it is not your fault.
{{{{{HUGS}}}}}}
Anna