Just a quick update - I think we're over the worst of it. Still feeling a little bit bloated, but the pain is pretty much gone. What a relief! I was up several nights just doubled over with pain, and it would come and go throughout the day too. My belly felt so tender and painful. Yuck.
For anyone else who's experiencing this, I found the de-gas stuff helped a bit, and having warm drinks, as well as sitting and standing with good posture and getting a bit of exercise. Belly breathing also helps gently get your tummy moving. And, you have my sympathies, 'cause it REALLY hurts.