Not to hijack the thread... but, do any of the waves mimic cataplexia?

My experience is most likely triggered by anxiety, but during road trips (even of just 30 minutes) I start falling "asleep". It's as if before me are two realities. The dream is foremost in my vision, but reality is in the background, as if behind a screen. Eventually, reality dissipates and I jerk "awake". During all of this, my body starts going limp and the area (especially) around my mouth tingles. Then my hands tingle. If someone tries speaking to me, my voice will be slurred as if drunk.
It happens during large gatherings of people too.
I don't pass out, but I might as well. I eventually fall completely and uncontrollably asleep.

This thread reminded me of those experiences (which no one has every explained satisfactorily).

I take meds for anxiety which have caused the episodes to nearly disappear completely.