I don't know if what I had was classified as this, but I was going through some crazy stuff. I was scared to go to sleep because I thought I was going to die in my sleep. I was having horrible panic attacks, going 2 and 3 days with no sleep. I would constantly pace back and forth in my apartment (on the rare nights when I was able to stay home. I was scared to be by myself.) and when I was at my parent's house. I was going back and forth to hospitals constantly because I thought I was on the verge of a stroke or heart attack. I was put on a couple of medications (after refusing to be put on any meds) because I was running out of options to try and fix whatever was happening to me. I was very close to killing myself at one point because everything just seemed screwed up and beyond repair. But the meds have helped get things back together. No doctors could ever figure out what was wrong with me, even though I had pretty much every test you could think of done to me.