1.
People suffer from anxiety or a kind of irrational fear due to some reasons such as seeing someone vomit, fearing that they might vomit in public and embarrass themselves, People who have these fears are said to be suffering from a phobia which is called Emetophobia. Thus, phobias are of a large varieties and it might also be possible that one has a phobia but is not yet aware of it. In any case, phobias are largely mental manifestations and can be treated with correct methods.