Am I in love with her?

Theres prolly an obvious answer to this question, but for the first time in my life I really like a girl, and whenever I'm around her or think about her I get butterflies, and like given the situation, I would rather do something completely mundane with her than something exciting with my friends. I even have trouble sleeping some nights because she's on my mind, is it love? I've known her for a good year now