Am i bi? i don't know if i'm even normal... iin?

I've been dwelling on my sexuality for awhile. I've been sexual attracted to guys (that look a certain way, kinda like a fetish thing) for some time but before I was even conscious I've also thought sexual things about girls before as well. I've never wanted to actually date or become in a committed/romantic relationship with a guy (I feel weird thinking about), I just liked the way how looked and really never focused on their "genitalia" of which I don't really lust over nor want. Recently I've also had more of a physical attraction to woman but not to the same level as I have for men which really frustrates me, wondering why can't it just be equal? I have no problem with the idea of being in a relationship with a woman, but something in my chest comes up sometimes when I think about being with them. Nervousness or emptiness? It might be...I'm an anti-social wreck whose never had a girlfriend. Anyway, I'm wondering if it's normal to be attracted to one gender more than the other at times. As I was more attracted to woman for a few days then back to men and it's like a never ending cycle. I want it to stay with both....Please help me, this feeling in my chest been with me since June and I've been dwelling on this since then. I remember talking to a girl who went through a similar situation as me during her years of growing up. Her talk actually made me feel confident and good about myself for the first time. Later that night, I fantasized being with a girl and really felt good. But as time went by, I haven't really felt the same again, which I think brought me to the conclusion that I may have a more emotional connection towards women.