I have that "an animal crawled up inside of me and died" noxious gas! I use Gas-X after meals, and bean-o on the first bite of food. I too was a veggy, and now my doctor says to eat meat, and the total change in my diet........it's just crazy.
I have had UC for 4 years now, and the GAS battle is an ongoing thing. I wish I could buy stock in Gas-X or at least buy it by the case. My GI said I could take as much Gas-X or (generic Semethicone) as often as i wanted to. It really helps with the Gas Pain, and gives me some sense of control.
Also, as mentioned above the charchol tabs really work, and i used them for the 1st year, and don't travel w/o them. they do need to be taken 1 hour prior to supliments or meds, and/or 2 hours after.
hope this helps.
I haven't been on an airplane since this problem.
Sometimes I sleep on the couch, cuz my hubby kicks my sticky gas outta the bedroom! it's so embarassing, but managable with Bean-o, and Gas-X, and last resort Charchol tabs. Good investment!
Good luck! YOu are not alone!