Good luck Guy C, and wish you very good health. I hope you won't miss the donuts too much.
Since you work on the road and may start packing your lunch, I've found that all hospital cafeterias have microwaves for employees to heat their lunches. Sometimes the hospital cafeterias have stuff that you can eat, too.
I had baked salmon with a whole baked sweet potato for $4.26 yesterday at a hospital cafeteria without consequences, and it was really good!
Could be interesting to have a Gluten Police Force documentary...