Quick question.

I dont know much about lucid dreaming, but enough so that it can happen.

So

*right before going to sleep*
On another forum-wrote a question, and went to bed.

zzzzz

I was dreaming i got lots of answers, then I was thinking, 'Is this is possible??', it was hundreds. Suddenly I was thinking wow, this as to be a dream, before I have never been sure. But this time I was really sure, I was even aware about my surroundings in bed by then(the dream had twindled away), and thinking, 'careful so I dont wake up'....Then the next idea popped into my head, to try to leave my body(as i've been thinking about this before when awake)when I now finally had a chance. So I tried to go straight up, with all I had. Then the strange thing happened, it worked but i felt hard shacking going trough my body, and suddenly i didnt feel my body, I was going straight up with incredible speed, towards something blue(I didnt have any destination, just wanted to leave the body), then it faded away, and i could sense my surroundings again. Slowly drifting towards deeper sleep. Not sure if I really woke up.

So can someone explain to me, was this a lucid dream? or just a dream in a dream? What was the shaking about?
'have decided to read up more about this,only wanted to get this question of my chest*
Hi,btw