My DR just diagnosed me with this three weeks ago. Turns out I had an appendicitis.
I went to the hospital with gas symptoms that had my upper stomach bloated and was having trouble with constipation and diarrhea all in the same week. My blood work was normal. We did a catscan. My appendix was swollen 3X's its normal size. I could have died from a mis-diagnosis.
I did not have the typical symptoms. No pain on my right side. Just the gas and bloating and bathroom irregularities.
Drs have been telling me for years it must be IBS.
It has probably been my appendix all along.