Is it normal to have a fetish?

I mean I believe I can have an emotional connection to girls but not men...I'm attracted to this fetish I have, a fat fetish that only applies to men and I don't focus on things like penis or @ss or anything just their fat and the thought of dominated...not in my @ss but as if I was a girl and I had a vagina or something.

I'm somewhat more physically attracted to girls than I was before but not to the extent of my arousal to the fetish. I mean I've had erections for women before and when fantasize about them I can get an erection slowly. Its harder for me to get aroused by women in porno though I know I have been at times before...I don't understand why. I don't have a problem for girls, I'd love to fall in love with one, its just that I'm so nervous and I have practically no confidence in myself.

I know I'm not gay or whatever, I couldn't get a connection with guys even if I tried. Its just weird and uncomfortable...I think I'm bisexual...does having a fetish for the same gender make you bi...? Please give me answer...