I contracted a stomach virus from one of my students about a week ago. I dint have much of an appetite days following and I still don t have much of one. I ve been experiencing fatigue, nausea, loss of appetite, and nervousness. I m normally very active and work out 5-6 days a week. I also normally eat 5-6 small meals per day. However, after the virus, I m not as active nor am I eating as much. Should I be very concerned?