Eating disorders can be extremely taxing just because of the thoughts that tend to run rampant through your head.

I was actually in a similar place as you when I was living at home in middle and high school - not really feeling like I had a real eating disorder because I wasn't 'as sick as some other people'. The people I talked to about it just blew it off as no big deal. It wasn't until I got to college that things started getting bad. I can't say what would or would not have happened, but I genuinely wish I had worked through this problem and these thoughts before coming to college where my ED was given the chance to get out of control (so much so that I had to drop out of college twice).
It may seem petty or small to ask for help for this now, but please do. It may not seem like it, but it is the right thing to do in this situation.

Good luck, my friend!