Should I tell my best friend I have deeper feelings for her?

UPDATE Hey guys! I talked to her about it face to face! Sadly I don't think its gonna work because she lives a very hectic life and needs a constant friend.( I totally get that, we have been friends for years and her life is very crazy for a number of reasons.) Even though the outcome wasn't what I wanted, I feel relived and very proud that I racked up the nerve to talk to her about it in person. Thank you to everyone who commented and gave great advice and support!

I'm sorry about formatting I'm on a phone. My best friend is an amazing person and iv fallen for her! I'm leaving for college in the fall but I can't get her off my mind. I thought at first it was just a crush, but its been 4 months sense these feelings have developed. Iv tried to go on a few other dates with different people but my friend is the only person I want to be with. The college I'm going to is really not that far from where we are, and she's moving even closer to the college soon. But I don't know if she likes me back. There hasn't been any clear signs that she's into me but theres also a lot of flirty teasing, and compliments on how I look. ( Iv recently lost a lot of weight so I figure it may have more to do with that??) What should I do?