Too lost in HER!!!

Hi girls! - I would so love it, if you could give me some advice... I think I really need:(

To make a long story short... There's this girl... And I think I might just be falling in love with her.. Well.. I know I am! She's just amazing! But the thing is, I have no clue wether or not she's gay. I don't see any "gay-signs" at all, but when we're together, I just really feel like there's something there. It's like we have these long eyecontacts, and... It's hard to explain.. But I've never felt this way before, and it's like there's something in the air when I'm with her.

We met like six months ago, when I moved into the apartment right next to her, but we never really talked up until like four weeks ago. We were both invited to a party, and we just had the best time. At one point she was touching my hand, and I swear, I thought I was gonna pass out right there on the floor!!

I don't know, maybe it's just all in my head, but I am dying to find out about her feelings.. I don't want to scare her away or make her uncomftable, but I'm very outgoing and all about just telling her how I feel about her, or maybe just that I really like her... But is that a stupid thing to do? What should I do?