I am a 23 year old Caucasian Female. A few weeks ago I noticed I was passing frequent and very odorous flatulence. It's quite embarrassing and sometimes it is so bad that I can't even be around it. That is really my only symptom. I have normal bowel movements and everything else seems to be normal. Except recently I have been a little more tired and lethargic and have had a bigger appetite than usual. I went to my doctor about a week ago. All blood tests turned out normal. I am trying to eat Gluten free, but since the blood tests came back normal the probability of having Celiac Sprue is low (because there was no infection found in the bloodstream). What else can it be? Can someone help point my research and efforts in the right direction?