I was diagnosed with anxiety a few years ago, but I think I have had some level of anxiety for a long time before that. I was officially diagnosed with general anxiety disorder. One problem I have is that, when I inadvertently hear or see some types of scary stories, I go on to experience existential terror for at least a week, which can cause me to lose over an hour of sleep per night (a few years ago I had an episode like this which lasted for months). I try to avoid urban legends and scary stories, but I sometimes see a trailer for a horror movie while watching something else or someone else will talk about a scary urban legend.  While this does not happen too often (around once every two months), it is still a big issue since I already have trouble getting enough sleep.