I've been to a 10 day Vipassana retreat. I appreciate people say it gave them great benefits, but it did not sit well with me, so I share my story in the interests of balance. At first, things were fine. I adjusted to the silence quickly enough, the food was simple but nutritious, and didn't mind the meditation (other than the pain in my legs and back, but my request to sit on the back wall was granted). However, mid…
That freakout, and that worry (which you apparently have since discovered was unfounded, I hope :) is precisely what the meditation helps you deal with, among other things.
And yes, it kind of sucks that the teachers can't speak more at liberty with you. But there's a lesson there too: in the end, the answer to any trouble you might have is to simply find the craving and the aversion. Find the ignorance in your misery. You were safe and taken care of, and you felt you were at risk. You were wrong.
Blaise Pascal famously claimed that all of man's problems stems from the inability to sit quietly in a room, alone. And we are not able to do it, either. Vipassanna is the rather upsetting path toward learning to be able to sit quietly in a room, alone. And it's very simple, but not at all easy.