Horror

You might have missed the point of Drag Me to Hell. It's about the protagonist suffering an eating disorder.

Almost all the horror involves things going into, or coming out of, her mouth, and she won't physically touch food. In fact, every time food is on screen, something horrible happens to her.

She has nose bleeds and loses hair, anorexia symptoms. Notice how those around her don't react appropriately had those hallucinations been real? She used to be fat as a kid, the Swine Queen. Now she's thin, even for a Hollywood actress. So very much more.

Try it again with all that in mind. :)