It's understandable, but it's important to remain calm, because it makes you not only avoid infractions, but makes you appear more intelligent.
The feeling is very difficult to describe, but it got so bad I could feel physical weakness in my muscles. It felt like almost they were made of jello. The emotion of it all is everywhere, it's very difficult to shake off or make go away, and you feel like you can't do anything about it - hopelessness.
It's so intense people just don't get it.