Who are you to say what constitutes an emetophobe? If it's affecting this persons life, and they feel like they could be emetophobic, it's not up to you to tell them that they're not.

DrAnnie, I don't buy into drinking or eating things to ward off a stomach virus. I think if you get infected, you're going to get it. I don't believe that probiotics ward it off (though there are other benefits to these) or grape juice, or cranberry juice (I've heard this one for UTIs and viruses) or vinegar or anything. I believe in keeping up hygiene and keeping your hands away from your face.