I don't think its that in the majority of cases in my experience, I've met several female emetophobes through social phobia forums and they had no idea that they had something additionally that they were coping with. I'm not sure why men are lacking with this phobia and why it is more common in women than men, but i sincerely believe that it is how it appears - that it is common with women but not men. Something about the traits of women on a biological or personality level must some how be more liable to it, I'm not sure. but i believe it. I don't think i'm effeminate though lol