My son is 18 months old, and he is super clingy and seems to have nightmares after staying at his fathers as well. I don't think that you need to worry that it is because of something that father is doing wrong, or that you are doing wrong. I feel that my son reacts this way because he has been without mommy, the one true comfort in his life. The only real advice that I can offer is to cuddle with your girl to assure her that you are there with her.View Thread