Now I eat a very high fibre diet so we can rule that out as a cause if indeed I were to have diverticulosis. Nor am I ever constipated. I still feel (hope) it's reasonable to assume my problem on that one day was kidney stone related. The proof will be when I return to longer runs now that I've completed both of my surgeries, the second of which went much better (less pain) than the first. I dread the very idea that the nausea won't go away. Out of sheer interest however I did some research on Diverticulitis and found two things that were interesting. The first is that there is no basis for the common belief that seeds/nuts cause or aggravate the problem. The second is that the recommended diet when you have a flare-up is very low fibre. This makes sense as the purpose would be to let the colon relax and heal. You start off with a liquid diet for a day or two (water, juice, tea) and move to a diet of canned fruit, white bread, digestive cookies and white potatoes (no skin). Clearly the plan is to rest the colon then hopefully move people toward the high fibre diet that may prevent ongoing issues.
Out of sheer curiosity I decided to put this diet to the test while recovering from my surgery. The last time I had surgery I had a very low appetite and expected this time to be no different so bland foods seemed appealing. For about 4 days post surgery I ate canned fruit for breakfast, a slice of white bread or digestive crackers mid day and a single baked potato for dinner. I also drank copious amounts of water. In the end I'd guess it was 800 calories or less per day of low fibre food that was indeed very bland. I couldn't care less though as my appetite was minimal with sleep being a higher priority than anything. I lost 4 pounds, was constantly tired and was thankful for the return of real food. White bread is pretty terrible tasting when you aren't used to it, a bit like glue.
Subjectively I feel very good right now. I'm not sure if it's the surgery, the bland diet (unlikely) or psychological but my "guts" feel better than they have since I began experiencing regular nausea last summer. My hope is that this is a permanent state of affairs. The one dietary change I'm committed to is a large increase in water intake in hopes of preventing future kidney stones.
As a last note to this post I thought I'd share a couple of home cooked meals I've made lately. After adopting a plant-based diet my interest in cooking at home grew quickly. My plan is to share more photos/recipes and home cooked meals in the future on this site.