Being able to vomit is normal. Because, every once in a while we put things in our bellies that ought not be there, and so the body has a way of purging the stomach.
However, if we could avoid putting bad things in our stomach, we would never need to vomit. Now, if stores would stop selling bad food.
So, it is nice not to vomit, but it is bad to not be able to vomit. There are emotional trauma conditions that end up with not being able to vomit.
Agreed.