Do you have any sinus trouble? Sleep apnea? Drink alot of sodas, chew gum? Smoke? The reason I ask is because a major contributer to gassiness is air gulping. (aerophagia)
The other source is an overgrowth of bacteria in the intestinal track. Lactose intolerance can cause this, and we all naturally develop some degree of LI as we get older. http://www.nlm.nih.gov/medlineplus/ency/article/000276.htm
Food allergies are different from a food intolerance. A food allergy reaction usually starts with things like itchiness, hives, swelling in and around the mouth and throat, trouble breathing, dizziness or fainting.
All carbohydrates (sugar, fake sugars, fruit, wheat, vegetables) cause intestinal gas, except rice. I eat alot of rice.
Edited to add: Hey! Any snow in Wesley Chapel tonight? I'm too far south, I heard even Orlando might get some.