Welcome Leonard,
There are different types of ways to deliver radiation in daily fractions, have different names, and have heard of the radiation treatment your'e having with the 5th day being twice daily, 6 hours apart, which may be called Accelerated or Concomitant Boost Radiation, while some go in for a 6th day, and treatments weeks may also be reduced to 6 weeks instead of 7 in some cases. I'm assuming it's IMRT as well.
It's not mentioned, but the best prognostic measure at this time for oropharyngeal cancer is if it's
HPV related or not, if you don't already know. I believe it's required these days to test the biopsy anyway, although they may test p16 positivity only first, but if that comes back positive, then it should be tested for
HPV since it can be p16 positive without it being
HPV related.
Glad you have the support to get you through treatment, which my be half the battle, and suggest you educate yourself with the treatment section here as to what is likely or less likely to occur, and some prophylaxis to reduce treatment toxicities.
http://www.oralcancerfoundation.org/treatment/http://www.oralcancerfoundation.org/facts/radiation-side-effects.phpGood luck.