Well, that's sounds pretty positive Paul.
As Charm used to say, the " tincture of time" helps with all these side effects. Hope you can get the collagen and that it does indeed help. In the mean time get eating. Try Christine's smoothie recipe for a huge caloric hit and join Ed at the gym to condition yourself.
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!