Listen, I have a lot of friends that are lesbian and a lot that aren't. It's interesting how the two cross over though. I have a lot of straight female friends that will even get sexually turned on by a woman but the thought of a relationship with them or anything more than sex does the exact same panic attack thing that it does to you.
I consider myself bisexual because, sexually, I like to be with both sexes. However, when it comes to settling down, I prefer it to be with a man in the traditional relationship sense. Nothing against homosexual relationships, it's just not a longterm solution for me. I don't consider myself a lesbian for that fact. I consider myself a straight woman who likes to have fun! I don't think you're a lesbian and you have nothing to worry about. I assume that you're pretty young and your body is going through a lot and getting sexually confused through your teenage years happens! Embrace it and figure things out as you go!