HELLO ! for 20 days i m feeling fever on upper part of body{head and neck}and mild burning sensation in eyes ,tired. i visit to doctor and he suggested chest x ray,cbc,urine,and thypiod test ,but all comes negative.he gave me multivitamins only,but after that also i m feeling same.it is almost 30 days and i feel it ongoing.fever never crossred 100degree.plz suggest me.