On last Saterday night (I think it was.... November 10) my mom was dropping me of to my (really cool and awesome) Grandma's house. I was standing on her [i]really[/i] big porch, watching my Mom's car drive away, and it was really rainy. I felt this [u]very[/u] bad feeling. Like, massive vertigo. I was really dizzy as I felt bad. And somehow, I knew something bad had happened, or was going to happen. But I haven't heard of anything really bad happening. I mean, sure, some stuff might have happened, but it isn't usually enough to make me [i]feel[/i] it. I guess I'll just keep an eye out on the news...

hmm, almost sounds ike you might be having partial complex type of brain seizures, no joke.  I developed epilepsy out of the blue a few months ago and that is exactly two of my seizures symptoms or effects  I get really bad vertigo and nausea.  Mine are a little more than just those two symptoms, I also get a sort of out of body experience called disassociation and the same funky taste in my mouth.  a brain seizure could be as little as one or two symptoms like you described. I had no clue I was having seizures because they were so mild until I went and had an EEG done showing some screwed up brain wave functioning on my left temporal lobe.

Not trying to discount your experience, but just offering a alternative to a impending doom prediction.

The weirdness I get is with my confidence.  I can be right on top of the world and then BANG!  something small can take it all away...I blame my Saturn squaring my conjunct Sun, Mercury and Mars in Gemini - then lucky me has my moon in opposition in Sagitarius.
Does nayone else have a similar chart?

On 9/11/2001, before the infamous incident, I had a bad feeling all morning.  I knew something was going to happen.  I don't remember feeling physically bad, but I do remember that horrible feeling of impending doom.  

I wish I knew how to focus on those feelings to figure them out, because I was afraid for my family, like something was going to happen to one of my children or something.

Well, you never know....lol...it could be a brain seizure or it could be something bad. No offence (not to make you feel belittled in any way) you could have had a minor out chaotic experience that is just something that will effect your life. Feeling come in and go away magically, and they ususally don't explain themselves. You might want to work on meditation to find the meaning.