Rick,
I'm fairly new to this board, but my husband was just diagnosed with a recurrence of SCC originating in the tonsil. He is now 4 years post-treatment and had done very well.
It is very, very scary but until you seek input from your docs, your questions will continue to haunt you.
Like Amy said, take a few deep breaths, get yourself into some good hands, and go from there.
I wish you only the best.....Loretta