Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
Such a pain in abdomen that has persisted with other symptoms of weakness, pain on pressure indicate for the following;
Take your daughter to the Doctor or ER for clinical evaluation, examination and investigations of blood, urine and stool.
Ultrasonography of abdomen and CT scan if needed. All these will lead to a proper diagnosis and thus will help for a proper management.
If the cause is medical, like
gastroenteritis, a course of an antibiotic,
Metronidazole, probiotics, symptomatic and supportive management will help for the cure. If the cause is surgical, like
appendicitis,
diverticulitis and so on, then there is a need for surgery, Further, a surgical opinion will help to decide and get implemented.
I hope this answer helps in decision making.
Take care.
With regards.