Answer:
Take out the extra context and detail.
Explanation:
The email states, "I have been puking my guts out, and I can't even get off the bathroom floor." This is the part where it is inappropriate for the audience. I would say that this would be a better email:
" Hi, I wanted to let you know that I would be missing class today because I am sick as a dog. I have been feeling quite sick and don't feel like getting up. Thanks, and have a good day!"