I have not felt well x 3 weeks. fatigue, sore throat, headache, body aches, nausea and diarrhea, chills and low grade fever. I might feel well x a week and then I am down right in bed. Today I went to Dr and he ordered chest X-ray and CBC, both came back normal. He prescribed me Augmentin. A flu swab was taken and results are not back. Is this something viral and will the antibiotic help or not?