I met this young lady at this indian pow wow about 2 weeks ago and i have been thinking about her since.?

Iv liked a few girls a lot but not like this when ever i seen her at this pow wow i got weak my knees i would feel like they were about to give out on me my heart would start beating, i would get erflies in my stomach.What does this mean do i just think i am in love or what. There is just something about her and it's not just her beauty when i look in her eyes i see something more.I found her on Facebook and im talking to her but i just don't know to tell her how much i like her with out scaring her away. Please i need some advice.