Your guess is right. There are high chances of this being Malaria
. Get a blood peripheral smear done for malarial parasites. You can also start on empirical treatment for malaria. Get them prescribed by your doctor.
Else it can be one of the viral fevers too. You need to get a complete blood routine done. Take adequate bed rest
, drink plenty of fluids.
We need to rule out Typhoid
too, so get a widal test
Hope this helps.