Crazy Lucid Attack! *Turned Lucid While Fast AWAKE!*

Yeah I just wanted to check this if this was normal!
I was at school just awhile ago and at about 1:00 I was fast AWAKE listening to my teacher's discussion. I didn't want to lucid at all I was payed straight attention to my teacher.(Sorry for failgrammar). Suddenly I felt a sudden surge and I got a bit sleepy.
I couldn't understand why but I REALLY needed to keep listening to my teacher cus there was going to be a big exam next week and I have no clue on my math subject. I payed hardcore attention but I kept feeling sleepy and I NEVER slept in class or got sleepy this is the first time. I also didn't sleep extremely late last night or even I slept extremely early and woke up very refreshed.

There it hit me! I had fallen asleep but the odd thing is... I could feel myself awake, I could still hear my teacher discussing the lessons, I could still feel my arms and legs. But there was one thing... I couldn't move. I KNOW I was sleeping I always had the feeling of sleeping. I don't know what to call it but it was crazy I wanted to scream help since I couldn't move at all. I listened to the WHOLE discussion of my teacher while sleeping(And yes, im sure i was sleeping). After the discussion was done I felt a surge of a somehow power go through me and I felt like I just woke up from sleep. The teacher looked oddly at me because it looked like I was daydreaming like hardcore much so she asked me if I was daydreaming I dind't want to me laughed at my classmates for daydreaming so I said no mam! She asked me a question from the discussion and told me if I could answer that question I was really listening. She wrote something on the blackboard and all my classmates were shocked. They said no way that's impossible to answer its too hard. Somehow I felt the surge again I was a bit sleepy. I walked to the blackboard but I felt I wasn't moving my body at ALL.
I answered the question so perfectly the teacher even gave me added points for my exam. I was like what just happened and my classmates were crowding me and asking the same thing.

Anyone knows how this happened it really freaked me out and at the same time gave me extra points for an exam!

I wouldn't call this a ''lucid attack'', as you weren't in a dream. That's about all I can say as none of this makes any sense to me.

EDIT: I just found this. Sound familiar at all?

Narcolepsy

No that cant be right. I didn't fall asleep fully the link u gave me says you will fall asleep completely. I was part sleeping - awake and I still heard the exact words of the discussion. Also I forgot to add this in: I think this happens to me a bit when im REALLY bored I become sleepy but this never happened before like I was Half Lucidly awake!

You wasnt lucid, It was a daydream from concentrating so long and sitting in the same position, your body must have relaxed to the point you went into minor sleep paralysis from not having enough sleep from the night before, though you didnt fall asleep because your main intention was to listen to the teacher.
I could be wrong, though i fell asleep in class a lot, due to not having enough sleep, and being really relaxed from sitting in one seat doing nothing but listening.

Again, you weren't lucid in the slightest. I suggest going to see somebody professional about it if this happens quite a bit.

Sounds to me like you were just drifting off while hearing what was going on, I do the same when I sleep with the TV on.