All the symptoms are related to acute gastroenteritis
as you are having diarrhea
with vommiting and fever
. Go to the nearest hospital and have fluids Intravenously and tests such as Blood CP for raised White blood cells that is in infection and Stool R/E and Stool C/S for type of antibiotic sensitive to that.
Yoy need plenty of fluids if you are having diarrhea and if you are having vommiting now with diarrhea have plenty of Intravenous fluids and appropriate antibiotics and antipyretics for fever.
I hope I am sucessful in solving your query If u have further you can ask me
Get well soon
Dr. Azhar Sattar