Hi.i read your question,and got your concern.
The symptoms of acute gastro
enteritis, on off fever and body aches are suggestive of an ALGID
MALARIA.
If i was your treating doctor i would test.
Full blood count.. to see for infection ans
M.P(for malaria).
Serum electrolytes to see any abnormality as is occurs in
diarrhea,and renal function tests whether they are compromised?
Then i would give you antibiotic like
ciprofloxacin, anti malalrial,
domperidone for vomitting,pain killer and oral rehydration salt.
I think you should get an appointment with a general physician to test and give you these medicine.
I hope you are satisfied with my answer.
I am pleased to help to. Thanks for using healthcaremagic.