I have extremely vivid and life-like dreams just about every night.

This leads to ultra-vivid nightmares. The worst recently was my brother ended up sleeping with a girl he knows I have deep feelings for because they got drunk and just ended up going at it. I beat the crap out of him in the dream to the point where he was unconscious, and ended up throwing up in the dream because I was so upset.

I woke up in a cold sweat and couldn't fall back asleep the rest of the night. I rarely have nightmares, but when I do, they are so ugly and mentally destructive that I don't sleep the rest of the night.