A.

She wasn't sick.
Not physically.
Not in the physical sense, not in the way people cared.
She was sick, but no one noticed.
No one noticed the retching from the bathroom, the numerous disappearances to go check the scale.
No one saw that she was sick.
Not in her body,
But in her mind.
Not even her.

Warning: Some scenes may be upsetting or triggering for people, read at your own digression.