Doesn't anyone read my Vomiting FAQ anymore?[img]smileys/smilies_16.gif[/img]
Here is what it says about this:
Q. How can I know when I'm so nauseated that vomiting is inevitable?
A. As The Doctors Book of Home Remedies II puts it, "if low-key queasiness turns to gotta-go nausea, try to relax -- it is going to happen whether you want it to or not."
When the mouth waters excessively -- the medical literature calls it hypersalivation -- it's unlikely that you'll be able to turn the tide. (It's a good idea to teach children that they should get to the toilet when they're feeling sick and their mouths water.) And when you feel your tongue lock down (the roof of your mouth is rising too in order to give what's coming more room), you'll be vomiting in less than a minute.
Q. Why does my mouth water before I vomit?
A. For most people, hypersalivation is their signal that vomiting is imminent, and that's useful. The two most common theories are (1) the saliva is useful in coating the teeth to protect them from the acidity of vomit; and (2) the salivation center in the brain is right next to the vomiting center, and the salivation center gets "cross-talk" from the vomiting center being excited, kind of the way adjacent teeth seem to hurt when you've got a toothache.
To learn more about emetophobia, see
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