Hello,
Welcome to the site. I guess I'm comparatively old at 41, but I was diagnosed when I was 38. Unfortunately I'm on my second recurrence, with it now having spread into both my lungs. I too never smoked a cigarette or chewed, etc. I was also recently tested for HPV and turned up negative. You'll be surprised how many people you run into on this site who had no risk factors like us, and yet got the disease anyhow. I've been amazed by it.
It sounds like you're clear and I hope you stay that way. Welcome to a new group of friends who can give you a lot of support and encouragement in your journey.
-Steve

Age 41 - Stage 2 SCC tongue Dx 2/06. Cisplatin x3, IMRT x35. Mets to neck node discovered 7/07. RND 40 nodes removed, margins not clear. Cisplatin, Taxotere, 5-FU Fall 07, then IMXT/Erbitux for 7 wks. Inoperable mets to both lungs and pleura Dx Oct'08. 4 cycles Carboplatin, Erbitux, 5-FU so far.