Hi,

I found a thread on google which discussed people's experiences with a
sudden startling sensation when falling asleep and this is what I'm
experiencing. In fact, this message (posted by someone named "cynthia")
summarizes exactly what I'm feeling:

"This is interesting. I have had this happen once in a while,
when i doze off i am zapped awake. I have talked to others who have
had this happen as well. When i got back from my car trip and my t is
all messed up, i couldnt sleep for three nights because every time i
would try to fall asleep, i would jolt awake again. It was awful!
Finally it started to wear off. It has to be stress related, as i
couldnt have been more stressed out then at that time. I was afraid i
would never be able to fall asleep again. I noticed that everytime i
started to sleep, my hand or leg or neck would twitch, and thats what
would jolt me awake.
Cynthia "

This discussion thread was from late nineties, so just wondering if
there is any new insight about this?

Thanks.