a tapeworm or gallbladder disease in a five-year old is extremely rare so instead of trying to diagnose her it would be best for her to see a pediatric gastroenterologist for a diagnostic work-up. there is really no way to blindly narrow down the many possibilties over the internet.
my 5 y/o is always complaining of stomach pains what could it be? a tapeworm? galbladder issues? . she eats a lot could be stress? she can barely make it around the corner before asking to stop cuz of her stomach. sometimes she will throw up out of the blue she is always in pain.