What is this sickness vomiting stomach hurt and head hurt?

Possible causes:

* Gastroenteritis (stomach flu) is a common infection of the stomach and intestines that can cause vomiting, diarrhea, abdominal pain, and headache. It is usually caused by a virus, but can also be caused by bacteria or parasites.

* Food poisoning is an illness that is caused by eating contaminated food. It can cause a variety of symptoms, including vomiting, diarrhea, abdominal pain, and headache.

* Migraine is a severe type of headache that can be accompanied by nausea, vomiting, and abdominal pain.

* Menstrual cramps are caused by the shedding of the uterine lining during menstruation. They can be accompanied by vomiting, diarrhea, and headache.

* Pregnant is another possible cause of constant vomiting.