I am 31 years old. This is my 1st post, and the 1st time I have seen this site. I have had chronic 'd' for about 7 years now. I first went to a GI doc about 5 years ago. I have had numerious blood and urine tests. I had a upper GI barium test, CT scans and 2 colonoscopies in that time. I was diaganosed w/ IBS 3 years ago. I was prescibed ?Colestrimine?(did nothing for me) and a couple other meds that made me very dizzy, confused and sick to my stomach. WHY HAVE I NEVER HEARD OF SIBO? My doc has never even mentioed it. Is this new? Is it because I live in Maine? Is this a test that evey GI doc can adminimster? I hope someone can answer some of my questions.