I can't confirm it is a C attack but can say i have a similar thing. I have 2 different types of what i think is C..One is like someone has flicked the "off" switch, happens in a split second. Almost like a puppet having it's strings cut. The other is like my body is "short circuiting"- like shocks going through my arms and legs which makes me shake, then my brain feels like it's receiving electric shocks. I also get a similar sensation sometimes when i am going to sleep. Not nice at all.

MsKali describes some of the different ways my C comes out, too. I think the off switch and the short circuiting are perfect phrases. Before my N dx, they looked at epilepsy and called it pseudoseizures because they looked like that.
When I would fight against N or other C attacks I would get more of those kind, the twitchy ones. When I just let it be and come out of it when my body is ready I stay limp. I'd rather do that.

I can't say that's what you had for sure, but it does sound familiar.

The same with me- used to have psuedo-seizures, then when I stopped trying to fight and just relaxed, had more classic C, and if it was more intense C I would go limp. Also after shaking episodes I would be so tired, I could hardly move or talk and would usually have to take a long nap no matter where I was or if I had time to or not. It was involuntary following a bad shaking episode. The shaking could last for over 1/2 hour before I learned to totally relax and not fight it.

Thanks guys. I've only delt with C attacks in my arms when i've been extremely angry. The other night i had no majorly strong feelings before the attack which is making me worry a little. I guess I'll just keep an eye out and try to track what happens before another C attack.
Thanks again!

i recently started having "classic cataplexy".. I could figure out the trigger at first because there was nothing significant going on when I dropped. I did figure out that one did actually occur after an unexpected emotional moment...we had gone on to talking about something else when the reaction kicked in. It could have been more then a minute or two-but what I was talking about when it hit was completely neutral.