I'm sorry you had such a bad experience. After all, it's not fun anyway. I've had a couple and have been lucky not to wake up. I hope your next one goes better for you, even though, I know you will be scared and I don't blame you.
__________________
Bipolar I, Depression, GAD Meds: Zoloft, Zyprexa, Ritalin
"Each morning we are born again. What we do today is what matters most." -Buddha