How are they doing today?
Sounds like your girls will be okay, but it sure is scary when this kind of thing happens. There's nothing wrong with being worried. It is better to be worried and helping them only to find out later it was nothing, then to ignore it and find out later it was fatal. I'm confident your goats appreciate the extra attention.
backyardheards.com is one of my favourite resources for urgent livestock advice. They have a section for medical emergencies and they are very quick to help.
For this kind of thing, I
feed my goat/sheep hay (not straw - I hope that was a mistype), make certain they have lots of access to clean water, cut out the grain entirely for a few days. If they nibble on the hay, can
pee and
poop, then I feel fairly confident they will get through it okay, but still check on them every 2 to 4 hours, massage their belly, that kind of thing. They usually take two to four days to get over most of the symptoms.
One of the best things for them is to walk around, this helps to normalise their digestion. Once they can't walk anymore, then I know we're in serious trouble.
Another thing that might come from this is that the hooves might grow differently over the next few weeks. Keep a close eye on them and give them a trim as needed to keep them the right shape.