I didn't like chocolate initially after treatment, but I love it now (I'm 1 year 3 months post treatment - modified radical neck dissection followed by 6-1/2 weeks IMRT, weekly cisplatin and erbitux, daily ethyol).
My saliva has slowly returned. It's now probably 1/2 or so what it was pre-treatment. I take daily evoxac.
I had very little appetite for many months post-treatment, but now I am almost eating as much as I did pre-treatment.
As hard as it seems, be patient - it sounds like you're doing pretty well so far.
Best wishes,
Chris