Given the task definition and input, reply with output. In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.

My boyfriend can't breath through his mouth, just through the nose. When he tries he almost throws up. Is it normal or should we go to the doctor?
Since the nose has a breathing function, why does the mouth have a breathing function too? Is it redundant?