I felt sick starting last Wednesday. I felt fatigued, muscle achy, and have had some mucus drainage in my throat. On Friday, I started to feel better but I still have a cough, that burns a little in my chest. Do I have a virus or infection...hard to tell if I should get on an antibiotic or not? I also started doing a 30 day cleanse called Isagenix on Monday. Other than that I am not on any medication.