I have been having some sorts of dreams for a few years now, so i decided i would like to know what kind they are.. I am not sure if they are lucid or not.

One of the dreams i have is.. where i am lying in bed and can see everything around me, it seems like i am not sleeping but i always know i am.
I could try and walk away in these dreams or do something, like put a t-shirt on or something, but when i wake i am just as i was..
Like last night for example. .I was in bed with my b/f and i was sleeping, i went into one of these dreams, and i could see him and me, and everything else. I was lying down, and i was looking around me.. I saw a black thing on my leg, like i thought it was a spider at first, i really wanted to wake myself up to see if it was; because i'm scared of them; but i couldnt. These dreams i am in for a while. When i woke up i never thought anything about (the spider) lol .. but later on i noticed a thread lose and then i realised this must have been the thing i saw in my dream.. I didnt even know it was there.. It was only in my dream i saw it, thinking it was a spider or something, and when i wake there is something there.. which i didnt notice before the dream.. lol

There is also another kind i have.. which i dont know as much..
But one time i was lying in bed and i can see myself, like the above dream, but then i kind of think to myself, what i would want to dream of, and sometimes i can.. Its like i can control them..If i thought that i wanted to dream about going on holiday i could..

Sometimes also i be in a dream, and am scared of something, then i think, this is a dream, no need to be scared.. and then i am not..

Can anyone tell me what each of these dreams are.. ?