I came across this link: http://faq.emetophobia.net/vomiting.html Some of you may have seen it b4, but it tells you everything you need to know about v*, why it happens and lots of other things like why we detest eating the last thing we ate b4 v*. It isn't gory or horrific with no illustrations. I just thought it might answer a lot of questions that i have seen posted here over the past few months like: incubation perid of sv, how long is one contagious after catching a sv, food poisoning and if/how it can be passed on. It also explains the mechanism from the brain sending the message to the stomach and what happens. It really is a goodlink to read and it has definately made me much more aware of certain things. So, if you want to find out more, but don't want the horrible graphics/photos etc., visit http://faq.emetophobia.net/vomiting.html
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