Many of the foods you listed as the ones you eat are major gas producers. If you use the link below, it goes to a good PDF article on dealing with gas. It lists the food and whether they are low, moderate or high gas producers. It also lists other strategies for reducing gas. I hope it helps you.
Moderator Crohn's disease, Osteoarthritis and Irritable Bowel Forums
CD, Ankylosing Spondylitis, small fiber peripheral neuropathy, avascular necrosis, peripheral artery disease, pulmonary hypertension, degenerative disc disease, asthma, severe allergy and a host of other medical problems.