She could have also gotten them from infested crickets. If she's had them for that long chances are she would have stopped eating and drinking because she would feel full. (My girl had pinworm really bad and we first though she was eggbound). I'm not really sure what you mean by "seizure", I know chams do a vibrating thing (sorry about my lack of knowledge and correct terms on this) as a warning, that sometimes looks like seizures. Sever dehydration can cause seizures though. If you think she's dehydrated and that is what's causing her "seizures" you can go to your vet and ask if they can give her fluids. They'll put it under the skin and she'll slowly absorb it. Definitely get her poo checked again, if she had a really bad case then she may still have some worms and need more treatment.