When looking at a problem I try to decide if it is a single hen issue or a flockwide problem. When this thread started I thought it was probably a single hen issue but after this I think it may be a flockwide problem. I hate to say this but I think you might want to talk to a vet that knows chickens. You might call your county extension office and chat with them on how to go about that.The other two were laying regularly with nice hard shells, and now all of a sudden they're laying soft shelled eggs in the middle of the night, too. I haven't gotten a single "good" egg in almost a week.
....................................................................................... Does anyone have any other suggestions??