Hi Plums, just read through the thread - so sorry. Goats are just so different and with milking twice daily you build up a proper relationship with them.
It is always quite difficult to change their feeding regime, and always worries me that I don't get their usual mix (I can't store many bags due to rodents... and so have to buy a bag at a time) and then have to change abruptly. Having said that now that they are dry if I can't get it it would just be hay only for a week. I never read what it says to feed on the bag, just go by books and work out an average. My GG's are much more sensitive to overfeeding that the BT girl though, same for the kids. So I guess it depends also a bit on breed and the individual.
If she didn't have loose droppings you certainly did not overfeed her.