I am not sure what Richard P means by a nasty stomach bug but I can attest that three times during my last four trips to BA I suffered from throwing up, and diarrhea for one day. I was soo tired all I did was sleep and run to the bathroom. The remarkable thing was that 24 hours later I felt fine, like nothing had happened. My first time I thought it may have been food poisoning, but because it happened several more times, i concluded it must be a bug, even more so because 24 hours later I was fine.
Surprise! Last December in sunny Southern California I got the same thing after a visit from my one year old grandchild, who happened to throw up all night. He had it and then I had it. It's got to be a 24 hour bug!