They may be assuming you are having an isolated incident. It is also possible that you did not convey your fear as well as you think you did. I have trouble expressing the seriousness of my emotions when I get like that too. And, I am no expert, but if all the voices in your head are your own, you are likely not hearing voices. Rather, you are having racing thoughts, which is very different. Call them if you do need them. Make your point again if you have to.