Writing to inform, explain and describe Part 1

Informing gives objective factual information. Explaining gives reasons for how or why something happens. Describing tries to paint a vivid picture in the reader's head.

A scenario

Imagine this scenario: You feel ill and go to see a doctor.

Which of the following is informing, explaining or describing?

Person having a mental breakdown: "My throat feels like something has scratched it and my head feels like someone is hitting it…