Hi Dr. Grief, I'm a 40 yr old white male, 190lbs, thought I may have come down with the flu 6 days ago, and noticed any time I've eaten, or drank coffee, I get bloated pretty bad and have a lot of gas. The flu symptoms have subsided but the sensitivity of my stomach is still there. Coffee really bothers me now as well. I'm thinking I may have some sort of infection in my stomach or upper intestine?