well, first off, you would be treated as a minority, affecting how you think about you yourself, bringing down your confidence. you would probably feel sad, because if only a few other people know it, communicating would be hard. Like, when you go to the grocery store or out shopping, if you needed help with something, how would you ask? or a really bad scenario would be if you went to the ER, and your health problem wasn't obvious and it was internal. That could be dangerous.
The purpose of informative/explanatory writing is to inform/explain something to the reader. Usually in an easier way or in a short summary of a text/passage.
If you think about theme and understand what it is then you read the paragraph or sentence that you are reading then you will know exactly the theme of the story.
