I agree with Gail, I would treat for pinworms just to get rid of them. They don't do tissue damage but who would want them living in their body or their pets bodies. Eewww! Panacur will not have any adverse affects on the dragons so you don't have to worry about that either.
If your girls aren't eating as much as they used to, you have to figure, how old are they? Almost every dragon I've had would slow down tremendously between 7 months and a year in age. And the days are getting shorter so they may be affected and slowing down their metabolisms in preparation for winter. Some say its too young but I've had 7 month old dragons brumate, and all this seems more common in females but not always. The slow down has lasted from one to three months, depending on the dragon, but they have all come back from it and continue to eat and gain weight. As long as they are
hydrated and not losing weight, I would just keep an eye on them. I've also noticed before they become adults they seem to get a little lazier and only bask to get the job done. The rest of the time they lounge and nap after their late moring romps.