There IS just so much a human being can take, and they don't have to be an adult for it. If flight attendants are being run into the ground for hours on end, with no meal breaks and no adequate rest time, then that is simply wrong, and I highly doubt they voted such treatment upon themselves and not even the FA union would be stupid enough to accept something that works their members like children in a third world sweat shop.
I know there are alot of former TWA cabin crew members who worked with very similar conditions and for LESS pay (while at TWA) who would be happy to be called back to take your place.
Get a flu shot or find someplace to work where you can find more enjoyment.