Sward,
I know the feeling. It is odd not feeling the anticipation/joy about food in certain situations (I had my birthday last month about 5 months out from my surgery), but you do get used to it. Not being able to look forward to a Brazilian Steakhouse (all you can eat meat), or a good mexican restaurant (where I would eat too many chips + salsa), etc is a negative, but reframing those moments in my mind has helped me a lot. I can focus on talking more with my friends, or trying new foods (I was a pretty picky eater before and have taken this opportunity to try out a lot of new stuff with the mindset of "If I don't like it, I won't have to eat too much of it :D")
Stick with it for a while and you will start to look at this in a different light (although mine still hasn't gone away completely).