Imagine one day you wake up to discover that your country has declared a war on your body. News stations play package after package on this war, using covert videos of people going about their lives to punctuate this news, this epidemic.
Imagine that you have to be on your guard everywhere you go. You can't go out to eat without being aware of anyone watching you, judging you, simply for enjoying a meal. Maybe you're afraid to go to the doctor's office, because the doctor knows you're from the enemy camp and will debunk your appointment because it seems to be the right thing to do. Most days, you wear armor to shield your body, make it as inconspicuous as possible, but there's no way to be comfortable in warm weather.
Imagine, if you're a woman, that being beautiful suddenly becomes several times harder. People will only take you seriously if you put in extra effort on your daily appearance. Even then, most people will rank you low on their arbitrary beauty scale. It doesn't matter anyway, because you'll still have to pay several dollars more per shirt. Grin and bear it, society will tell you to be honored there's a section for you. Besides, you should be working on honing your skills and humor to compensate.
Imagine it's suddenly harder to get a job, that future employers will base your brain and skill level on your body. When you don't get the job, you'll never be able to concretely know why you didn't get it, but there will always be a nagging itch in the back of your mind. You'll have to work twice as hard to prove that you're not lazy, that you're as dependable as other employees.
Imagine you're a child in this war. Other children are cruel to you and say damaging things. From a young age, you'll learn your place as a member of the enemy camp. You'll learn to deal with the names, because as much as the school preaches that children shouldn't bully, it also indoctrinates the fact that your body is an epidemic.
Imagine managing friendships with people who don't have bodies like yours, and those that do. You'll listen to your friends say things to you, not understanding your struggle. “You're not that, you're pretty.” “Last night I felt like that in my outfit.” No matter how beautiful you feel you are amongst your friends, you'll still be aware of a sliding chart of beauty based on one factor. It's even more difficult with potential romantic partners, when you're trained to assume they're not interested, and if they are it may be a fetish or you may be an exception.
A lot of people don't have to imagine.