Hello, if you can, it would be good to see a vet to make some tests, seizures can be signs of other issues.
I'm not sure lack of food is the issue, you can always increase the portions in order to make sure she gets enough food, but it is also possible that rather than the quantity, it might be the type of food which is the issue : some gliders seem to have a low blood sugar issue, which makes it necessary for them to eat more fast sugars than others (low blood sugar causes seizures, and if it happens again, try to put some honey in the water you give her, it might make her recover faster)
There is always a possibility that they might fight after 1 week, but it is minimized if you keep the colony smell on her, so bring a pouch and pieces of fleece which have the colony scent with her (which is anyway a good idea since it would give her a familiar environment in which she feels safe)