What if I'm in love with my best friend of the same sex?

Okay, to sum things up I have been feeling feelings I normally feel for guys,for my best friend, who is a girl. I know what I feel, but it is my first time ever feeling this way about a girl and that is scary. I know I'm not gay, because I have loved a guy before, but when I am with my best friend, I light up inside.
My best friend and I have been best friends for the last three years. She is just an amazing person and I can always confid in her, but I am afraid if I tell her I think I love her, she will freak out. Her friendhsip means everything to me and without her I dont know what I would do. I have had boyfriends before and I never had feelings for a girl before, but when I am with her, it just feels right. I am absolutley terrifyed of her reaction but a part of me deep down, thinks she might like me too. But that could just be wishful thinking. It scares me to feel this way about her , please what should I do. All advice is highley apprciated!!

This doesn't necessarily mean you are a lesbian, but possibly bi. Although, it could be nothing. This girl is your BEST friend and you probably hang with her constantly and tell her everything (which I think you already said). There is an intimacy between all best friends, that's what makes them bff. It could just be nothing but the closeness of your friendship.

I know how to tell if your strait or bi, do you like being around her, or do you want to f#ck her!

I dont think I want to f*uck her, but sometimes I think about kissing her and thats what scares me

im actually in this kind of situation now, I had feelings for my best friend of 8 years and I didnt tell her about it until like a month ago, and honestly I regret telling her because our friendship will never b the same, we hardly talk anymore when we would usually talk everyday. so I don't know if shes an understanding person , I think you should tell her how you feel because its only going to eat you up inside.

im actually in this kind of situation now, I had feelings for my best friend of 8 years and I didnt tell her about it until like a month ago, and honestly I regret telling her because our friendship will never b the same, we hardly talk anymore when we would usually talk everyday. so I don't know if shes an understanding person , I think you should tell her how you feel because its only going to eat you up inside.