At your age, you most definitely do not have HPV related orapharyngeal cancer. HPV cancers take a long time to develop. And, the virus likes to hide in the squamocolumnar junction. This is found on the cervix, but usually not other places. That's why you hardly ever don't see HPV related skin cancers. It can happen, and does, but it is rare. Also, since you have had the HPV vaccine, I highly doubt you have HPV related cancer. Even one shot of the Merck vaccine has been shown to provide immediate protection.

Stop stressing. You're fine.

40 y.o., undiagnosed, spitting up blood past 4-5 months at random intervals, several enlarged lymph nodes under chin and neck, biopsy of one showed benign viral lymphadenopathy. Still being monitored by ENT.