Jeremy, I am brand new to this site, but not new to oral cancer. I never smoked, but KUDOS to you for quiting! I am one of the fortunate few w/recurring cancer, but no radiation treatment - only surgery!!  Squamous cell on my tongue & mouth floor in '04, '06, '08 - appt on Friday, to look at some sore spots, which may not be cancer.  I made the mistake of Googling mouth cancer w/my first postive biopsy - VERY scary!  Despite 3 surgeries, only I can notice the difference in my speech.  My advice, which has carried me through it to only worry when the doc gives you something to worry about - try your best not to borrow worry!!  Other than that, thank you for your military service - I have a son-in-law in So. Afghanistan at this time.  I hope and pray that you get good news and no longer need this site!!!