I decided to post this separately as it may affect some others.
I'm now 6 weeks post fundo and saw my consultant yesterday. My gas bloat has pretty much passed now, for which I'm thankful, but I still have a burning stomach a lot of the time. I did/do have some stomach damage from prior to the surgery so I'm going back on the PPIs for a trial period.
One of the problems is that by eating a non-gas producing diet, I am now mostly eating a protein-based one which is very acid forming and causing my stomach to be too acidic and possibly more damage.
It may just settle down once I can eat more carbs and veg again (more alkaline foods) or I may need further treatment in case there is a small ulcer, etc.
I just thought it worth mentioning in case anybody else is having these dietary problems.