Welcome to HCM.
I had reviewed your history. Your symptoms could be due to infection. It could be viral possibly bacterial too. But fever
associated with body pains usually occur in viral fevers including Dengue
. But as you mentioned living in a tropical country malaria
should also be considered which is transmitted by Mosquitoes. Any infection either Malaria or Dengue can be dangerous so get consultation by a Physician and get tested appropriately. There very simple test kits available to diagnose these fevers so consult your Physicain as soon as possible.