I have had this happen to me before.

The first time was when I was at my old house sleeping in my bed when I saw a giant spider spinning a web towards my face. I heard a buzzing sound which freaked me out and I jumped out of my bed still half alseep. I run down the hall and bang on my mom's door. My mom says come in but I don't. I go back into the room when I see the spider "flying" out of the room which told me that it was a paranormal experiance. Still freaked out I went back to sleep.
The second time it happened, just about a week ago, I saw a different spider. The first one was yellow, and black. This one was red and black. Again still half asleep I get freaked out by the spider on my celing making a web. My mom just got home so I go sleep with her.
What the heck does this mean! I am seriously wound up about these spider experiances.
First of all, What does a spider mean in dreams even though I was awake and still dreaming?
Second of all what do the colors represent?
Thirdly, what is happening to me?