My cousin is having fever from last 2 months when she takes medicine temperature comes to normal otherwise have fever . All test for fever is done and everything seems to be normal . She have had gone to heart surgery as there was hole in her hearth but test and everything was done but that too was normal . Her blood level is somewhere around 8 she has lost weight around 7-8 kgs . Doctors are saying tests are normal but if it is normal then reasons for all this happening. Pls suggest