A majority of us have, at some point, experienced rapture or tribulation anxiety. That's hardly surprising, given how strong the 'left behind' motif is in christian preaching and culture. More encouragingly, a majority of those who have experienced this say that they do not experience it now. As someone who has suffered from this in the past, I can reassure you that it does get better. The more distance you put between yourself and your christian past, the easier it becomes to move past that anxiety.