I was diagnosed with IBS-C a few months back. I've had every test possible (upper GI with SBF, Endoscope, Colonscopy, celiac test, 2 cat scans, hornones, thyroid, bowel transit, gastric emptying-all came out normal) and I seem to only have a "flare up" two days prior to my period and lasts for about a week. I have severe doubts that this is IBS related. every month for the last 6 months around two days before my period, I get gain roughtly 20 pounds of weight or fluid, my stomach gets severely distented and bloated, I get flu like symptoms (chills and sweats, running nose) loss of appetite, soft pitted edema in right leg. My stomach blows up so bad, I cannot breath or walk. It gets so distended that if I touch my abdomen it burns and hurts. I end up sleeping all the time during this period especially after eating something small. I was 136 pounds in January, and last friday I was 180 pounds. On Memorial day, I went up to 201 pounds. I am so frustrated and depressed because I am an avid runner and lifter and I am dieting like crazy to gain 70 pounds in 5 months. The Gyn says it is a metabolic problem, the Primary dr doesnt know what it is and says I may have to live like this for awhile and the Endocrinologist is waiting on Cortisol but doesn't think its endocrine related. Everytime I get like this I call the GI doctor and she will not see me as she says its not Gastro related...Has anyone experienced anything like this with IBS? I am not buying the diagnoses since these flare ups only occur within days of my period. I cannot continue to live like this. I am miserable and don't know where to turn. Any help or advice would be greatly appreciated