Undiagnosed seizures or "fake" seizures?

Hello, and thanks for reading this! I feel silly asking for help, and am half expecting no response.

Anywho, I'm having these odd episodes.  Basically, I feel very, very tired and my tongue feels heavy (?) then my eyes deviate upwards and I get head drops (my head drops backwards).  I become almost drunk~ I can't balance and I have little control over what I'm doing; I wander from room to room, on unsteady feet of course, repeat things, sway back and forth... all sorts of odd things. There's no twitching or jerking involved, other than the head drops and occasional odd movements that aren't nearly as quick as the tonic clonic movements I've seen in videos, and I remain fully conscious.  I can even talk, but it's an effort and my words are often slurred.  I sleep for an hour or more afterwards, and sometimes am "drunk" when I wake up.

I'm a 23 year old female with depression that is being succesfully treated with cymbalta.  I had these "incidents" before the cymbalta, however, and was even tested with a waking eeg when I was a child as I was thought to have absence seizures.  The eeg proved to be inconclusive.  I don't have a copy of the results now. :-(

Honestly, I'm a  bit worried that I'm "doing" these on purpose because I'm conscious during them, and have discovered psychogenic seizures.  It scares me a bit that I fit the profile in gender and age, but I'm clinging to the knowledge that I was suspected to have seizures when I was younger. That last bit actually makes me think maybe they ARE psychogenic, since why would I WANT to have real seizures? I hope you see where I'm going here.

It'd also help if you shared information about your episodes if they are similar. Basically, I'm a sponge right now. Please give me things to soak up and consider! :-)