Greetings, Mark - if it does come back as positive (and it hasn't yet) your life will change, but it doesn't mean everything is gone. You have youth on your side, and since you mention sports, likely health as well (but please ditch the tobacco0!
Take care, watch out for that Chicago traffic, and let us know your results.
Maria

CG to husband - SCC Tonsil T1N2M0 HPV+ Never Smoker
First symptoms 7/2010, DX 12/2010
TX 40 IRMT (1.8 gy) + 10 Cetuximab
PET Scans 6/2011 + 3/2012 clear, 5 year physical exam clear; chest CT's clear of cancer. On thyroid pills. Life is good.