Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice. Noted the history about your daughter who has shifted to Utah and understood your concerns.
The cause of pain in abdomen, vomiting large black chunks with bile and leg pains are indicative of the following:
1.
Gastroenteritis with impending stool changes.
2. Gastritis alone, related to acidity problems.
3.
Intestinal obstruction in proximal part of
small intestine.
This can be diagnosed by the following:
1. X-ray of the abdomen in standing position.
2.
Ultrasonography of abdomen.
3. Tests of blood, stool and urine.
Clinical evaluation by a doctor as it helps to assess the clinical condition and helps to decide the further plan of management and investigations if required.
Get started with a PPI like Omeprazole,
Domperidone for vomiting and antacids.
Antibiotics will be prescribed if there is evidence of an infection.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T Chandrakant