Glad to hear things are going well!
I got my taste back after several months. Chocolate was the biggest loss! But it's now all back to normal (two years out). Keep "eating" your shakes, etc. I don't know what you have in the UK in terms of nutritional supplements, but I drank Boost or Ensure by large quantities when I was in radiation. Helped to keep my weight normal.
Good luck with the rest -- you're well on your way!