Not an uncommon problem. Gastric barotrauma was brought up in our "human performance & limitation" classes. I don't remember there being much detail about it, just that it does occur & is very unpleasant, but trying googling the term. You may find something helpful there. Maybe try homeopathic anti-bloating remedies such as fennel? A quick google search brought up this website, which seems to have some really sensible, non-CAA alarming suggestions to avoid bloating. I'm sure you'll find many others out there.
Stomach Bloating Home Remedies & Treatment