Does this sound like I'm gay?

I am a 19 year old girl. I have NEVER in my life as I have grown up thought of being sexual with a girl or be in a relationship with one. On day out of nowhere I thought to myself "What if I am gay?" I have horrible anxiety, so I started going insane in my head because I couldn't understand why I thought that. And that's when it all started. I tried thinking of girls when I masturbate to test myself, and I think because I worried about it so much that I make myself think I actually like it. But I don't see myself dating a girl or marrying one, I have no interest in it. I only check out guys and I picture marrying a guy. I have a boyfriend now, and he gets frustrated because I am very distant with our sexual relationship. I try to get into it but I just can't because I think I subconsciously worry about this. When I do my hair and make up and choose an outfit, I choose something that a guy would like to get guys to notice me, not a girl. I want to feel the way I did with my boyfriend again and I want to stop worrying about this! Because I feel like if I was gay, I would have been interested in women for a long time, not just randomly one day wonder if I was. Need some input!!! Help if you have a second view! (I have horrible anxiety and have difficulty rationalizing with myself when I get this way.)