He said that you should report what happened to the state medical board.There is no way they should have treated you that way. He said that you may want to cancel too. There has got to be a better, & even faster doctor available. I live in a very small area -- but I got in within a month. If not -- then I'd wait to complain until after the scope. I'd write it now - though - while your mind is still fresh. Use as many details as you can remember -- times, dates, words that were said. etc.
If you don't want to complain -- think about it as possibly protecting future patients from having the same experience as you.