One other thing, if your Dr. is being dismissive, go to another one for a second and even third opinion. Also, some foods cause major bloating like white processed foods, and rice, flour, wheat, potatos, chips, pasta, bread, sugar, artificial sweetners, cabbage, brocolli, beans, gum, and carbonated drinks like soda. Even diet soda. So try to cut out those foods and test for Celiac disease. It's an allergy to wheat. Also, dairy products can cause bloating and gas in some people. Try to cut that out for a few days and see what happens. Drink lots of water and green tea w/o any honey or sugar in it too. No fruit juice. It's full of sugar. Fruit is OK. Good luck with everything!