When Veronica’s friends discovered she was going to have her…

When Veronica’s friends discovered she was going to have her tonsils removed, they told her she was going to be in a great deal of pain. After the surgery, Veronica reported that she was in a lot of pain, although most of her pain should have been alleviated by her pain medication. Given this scenario, which of the following best explains Veronica’s reporting of pain?