I have an additional problem, which does not help. Hiatus hernia. My posture in the chair isn't exactly brilliant. On occasion my stomach generates terrific amounts air, gas, which comes out in the form of prolonged burping. I too experience a sensation of having a dead weight, lump, in my stomach after eating. Not always, though. Your description of eating nuts, vintage, was very evocative. You have a few nuts and then you want more. I enjoy nuts. I roast peanuts, almonds and hazelnuts. It's a dilemma because you know the more you eat more problems you're going to have. It would appear that "bloating" is a common phenomenon where spinal injury is concerned.
And how mike .......... so not cool. So I have found a herbal remedy called .... wait for it “ gasex “ and apparently it is very good 🤣👏so will keep you posted