Yes, I'm sure someone who doesn't have anxiety would find the thread disturbing.
And that is the point, if you don't have the problem, and only have insults to add to the discussion, then please don't act like a child and respond if it's so disturbing to you. Thank you.
I was never diagnosed medically with anxiety, but I have some of the same fears you do about things like this. For example, when I had to sit for the SAT and ACT, I also had that "trapped" feeling which gets your mind racing to all sorts of drastic catastrophe's that are the product of your mind only, you have to remember that.
Since you know that you have anxiety, that should help you. I know when I'm on a train or something and I start feeling like my stomach is acting up or something, I just calm myself down by telling myself it is just my anxiety and that I'll be fine. With some positive thinking like that, your parasympathetic nervous system can fire quicker, giving you that wave of calm which I'm sure you've felt before.
Just know that you are never "trapped," the proctors that do the ACT and SAT have hearts and if, in the UNLIKELY event that it isn't a product of your mind and you really have to use the bathroom, just quietly walk up and explain. Everyone else will be too absorbed in their work to notice you, and I think they only cancel the scores if they suspect cheating, and going to the bathroom doesn't mean cheating (for most people...).
If you can keep yourself calm enough to sit down in the room and let them hand the test out to you, your mind will be so focused on your work after a little while that you're anxiety will dissappear.
And as a side note: man, some of you guys need to show a little more compassion instead of jumping to your flame guns. This is a legimate thread with a legitimate topic, he clearly has seen a specialist about his problem which is the first step to curing it, and now he just needs some reassurance, so lighten up a little. And he's right, you don't know what you're talking about until you experience it yourself.