My first thought was seizure. But I just started getting seizures a couple years ago so it's at the front of my mind always. But seizures can look like anything.

When you have these episodes, do you ever wet yourself (you don't have to answer, just think about it) have a headache? Have ringing in your ears? Vomit?

Disorient is common after a seizure, and seizures can manifest in many ways, when I come out of them I get this charlie brown effect, you know the teacher who sounds like "Waa waa waaaa" when she's talking? That's how everything sounds, and it takes a while for my eyes to focus, for my hearing to come in, it can take a very long time to snap out of it.

I'm also wondering about narcolepsy. It could be a possibility. There are a number of possibilities but I highly recommend seeing a neurologist. Go over all of your symptoms. Start writing them down before they happen. What you are feeling before it happens, what you were doing, the feelings you get that let you know it's coming (often for seizures people get an "aura" before the seizure and they know the seizure is coming, I've gotten that as well but only 30 seconds before the actual seizure), what you felt like during if you have any consciousness and what you felt like after the episode, document everything you can of what happened and it can help the doctors guide you.

It can be anxiety related, but seizures can be anxiety related. Studies show a good portion of those admitted for seizures into hospitals are having stress seizures, non epileptic seizures. There's no telling unless you see the doctor, and hopefully a neurologist. This could be something serious so please don't hesitate to cover all your angles when trying to find out the cause.