Do you know what this is? So last night I felt this jolt go through my body that caused both of my arms to fly up, I was laying down at the moment. It didn’t feel like a shock, it’s hard to describe other than feeling this wave that caused this involuntary movement. I then felt my eyelids go heavy and I couldn’t move. Then I drifted off in to sleep and woke up hours later. This is the second time it has happened to me. It always seems to happen when I’m tired. I was about to lay on my bed when I just saw this flash of white my body jolted again and I fell asleep and woke up just a few hours later. I’m I passing out? Is this narcolepsy?