Sorry to hear this man. I have an aunt who was diagnosed with diverticulitis when I was young, and I remember her having bouts with it up until she had surgery a couple years back. She put up with it for about 20 years before she finally had some portions of her intestine taken out. But I also remember her controlling it a lot with her diet and just not eating some things. Or when she did, she did so knowing full well she'd pay for it. I hope your guts stabilize before you hop on the plane. I know I get bloated whenever I fly. I think I recall her being told to eat a lot fo yogurt due to the cultures in it, but don't take that as gospel. Whatever happens, listen to your doctor and get better soon, mang!