Vomiting is the body's way of expelling dangerous material from the digestive tract. Sometimes, this can be a lifesaver. Prolonged vomit can of course cause some problems. Dehydration is top of this list, but the corrosive acids into the stomach can hurt the esophagus and even damage the teeth. After a long time, malnutrition can even come into play. So, while your body may be doing you a favor by vomiting once in a while, if this happens a lot, it can become part of the problem.
yes
Bad breath when they throw up.
She smells so bad i wanna throw up
If you eat it and then throw up. ;)
yes.
Depends how bad it is.
No. It is impossible. The only way they can throw up is due to either pregnancy or eating bad food. And if so, they will only throw up green stuff (puke).
If you don't want to get sick
yes
Eating something bad, poison, gas, or sickness.
because the toothpaste has a bad taste
Sounds like a bad case of inebriation.