I need some help - Fat Fetish

Is it odd that I have a fat fetish when I am only 18?
I'm finding out recently that this is a fetish.

I've had this for about since I was in elementary school, watching television shows about morbidly obese people compulsively eat and then having to go to the bathroom due to a "need to pee" feeling.

Today, I found out about "Squashing" and instantly that same feeling arose inside of me.

Not only do I find it disguising, I hate myself even more because I became wet while watching said videos.

Why me? I have a fear of becoming obese/fat. My family is a bit overweight, but why do I have this sensation?
Please help me.
I can't stand it.

-Confused and Alone.

I can't really talk to anyone about this besides you.

Also, I am a girl who is attracted to guys - so why does this attract me if they are girls?

Ugh, I'm like, the same as you, I don't know what to do about it either.