I think we answered in a different thread but it's definitely good to have it here, too, in case a visitor finds this thread and needs the same help.
Kimash is exactly right - always check with a vet when there's any doubt. Keets are trained by nature to hide any sign of illness. They don't want to be the "weak link" that predators exploit. So you can't go by outward signs of problem with keets. Even subtle changes can mean a lot.