Great description. I was describing some really bad ones for my pdoc the other day. I told him when they were bad, it was exactly like being strapped into a 737 screaming straight for the ground at 500 miles an hour. All the windows are open. And instead of clouds and space and air flying by, what is racing past are my thoughts. I can't possibly keep up with them and they are overwhelming. After awhile, it is incapacitating.

That is how I experience it.