Thanks for the query to H.C.M. Forum.
Since you are having fever from many days ( according to your history of illness) with cough, generalized body ache , weakness .
You got relief with FLEXON ( ibuprofen
) and this is not a treatment rather symptomatic relief provider.
Ads you stated that you are asthmatic patient also.
In my opinion may be due to ,
as all symptoms are an indication of tuberculosis so confirm with X ray chest and C B C & E S R( if very high > 70 mm of Hg ) , so consult a qualified physician and get his opinion.
2 Typhoid fever
so get in blood for Widal test
and confirm it .
3 Serum bilirubib test will provide some clue about jaundice ( mos t common cause now a day).
Hope I have answered your question.
If further any question I will help.