I am a 37 year old female who has suffere from mild IBS symptoms since my teens. In my teens in early 20s it manifested largely as hard stool. Since then it has been more in the form of "attacks" of sudden diarrhea, cramps and sweating. More recently within the last year I have had an increase in flatulence, bloating, a feeling that my ribs particularly around where the ribs meet in the center of my chest, and burping. I have taken Levisin for the "attacks" which seems to help, and I have tried stints of Prilosec which seems to be lacklustre effective for the short term. I was tested 6 years ago for sprue, because a routine blood test was showing the possiblity of some sort of allergy. The sprue came back negative. Any thoughts?