Hey Upbeat,
I also at first thought I had food poisoning because the diarrhea was so bad that I knew something couldn't be right but knowing I had went off nexium and started dexilant got me to thinking maybe it was related so after researching dexilant I have decided I have had an allergic reaction to it.
I have been off it for 3 days and seem to be getting slowly better. I am no longer itching and the diarrhea has gotten some better but still having some issues with stomach pains after eating and now taking pepto which seems to be helping.
I hope by the end of this week my stomach will be better. I certainly hope so cause this sucks.