are you sure they did not have worms? many times the problems start from there, we are advised to when your goat had babys ( i know that now is not the case, but when... ) Give mama goat antiworms pill or drink, just after the delivering, that way she will pass it on by breastfeed to her kids, normally kids you are only allowed to tread with it after 2 months but coming from their mum it goes in a very safe way. Goats are so funny ! love them.