Other things to avoid:
sugar alcohols (sorbitol, xylitol, mannitol) watch the low carb stuff
I also have the gas/bloat problem. I read labels to make sure there are no sugar alcohols in anything, even medications. I would try Beano but it has sorbitol in it.
Don't chew gum. Especially sugarless.
Gassy veggies - broccoli, cauliflower, cabbage
Gas-x has helped a little at times. Sometimes not at all for me.
Splenda tends to bother me too. I can tolerate sweet n low and nutrasweet in my coffee.
Coffee in the am doesn't bother me but if I have a cup after lunch it's going to be a problem.
Hope this helps.