Mike,
Sorry to hear about what you are going through and wish you all the best. I will be praying for you and your speedy recovery.
While everyone has their belief in what to eat to be healthy, and they can find sources to support what they want to hear, I'm not a fan of anything, or supporting anything. Having said that, I am eating paleo and enjoying it. My weight has been decreasing and my energy levels are up. I don't miss sweets or even have any cravings for sugar. We eat a lot of fruit, certain nuts and vegetables every day, along with meat. We don't eat anything processed or refined.
In my experience, the most problems people come across is when they self medicate or do something that their doctor didn't recommend. My dad went through surgery a few weeks ago. He was working on their house the next day. For him, it was a simple operation that took two tries to get it all out. They where successful and he has been following their treatment to the letter. He has had both knees replaces, and both eyes operated on. In every case, he does everything exactly like he is told to do it and in every case, they comment on how quickly he recovers. Seems that most people don't do this and it leads to other problems or it taking longer to heal. He is 77.
Eddie