One time I was having a wonderful dream, I no longer remember what it was about but I remember that is was good. Things started swirling a little kind of like when you're about to wake up, it was very sudden and not comparable to any of my other non lucid dreams. It actually made me Lucid for a minute but it didn't last long at all. It was like I'd been pulled out of my dream into a place I never would have gone. The mood was very different in the new setting, I felt sick. The story gets a little long and complicated but eventually This dude ends up stabbing my best friend in the back with a huge knife four times while he's staring right at me smiling. I tried to yell at him but I couldn't speak, I've never felt so much chaos in my life. I watched my friend fall to the ground screaming in a horrible way, then the dude started walking towards me. Luckily I woke up before he stabbed me but I was still very afraid even after waking up. I don't pray often but I prayed for a long time, I felt sick for hours. Although I've had very vivid, very scary dreams before, I've never had one that affected me so much even after waking up.

Ever have one like that?