hi i am 30yrs old and had always been healthy.since past 1 year i am having intermittent low grade fever with chills, muscle pain and tenderness without localisation to any specific area,fatigue,weight loss and often neck stiffness during episodes of fever.i visited a reumatologist and was told that i didnt suffer from any rheumatological disorder.i also visited infectious disease doctor,infact two of them,and was told to perform a huge number of tests.the tests revealed that i am slightly anemic,with trichinellosis,brucellosis n q fever,giardiasis.i was given medication except for brucellosis and after 3 months i got cured of giardiasis,trichinellosis.after about 1 month i again started having low grade fever,neck stiffnes,muscle pain and fatigue which subsided by taking ibuprofen during the episodes.test was done again n my q fever igg titre was still increasing and brucellosis was positive too.its been 1 year and doctors havent come to a definite diagnosis and concluded to be fuo.i stil experience muscle pain n tenderness often with low grade fever sometimes and becomes tired at the end of the day.i have too lost weight within the past 1 year.hope you can help me?