The most likely cause for your illness is viral fever
. Sometimes, it may take a while before it resolves. Body pain and lack of appetite
are part of this illness.
At the same time, if fever is not subsiding, it may be worthwhile investigating for other causes of fever, such as urinary tract infection
, typhoid, etc.
For symptom relief, you can use paracetamol
tablets round the clock (4 times a day). I am sure you would recover fast.
I do hope that you have found something helpful.