I returned home by airplane a week ago from SC. After returning I began to feel sore back that would ease with a hot shower momentarily but return. Legs are achey and stiff. Tired, slight depression, now a sore throat. No exceptional urination or groin pain, all urination normal color no cloudy. I am a 66 year old very active woman still working as a water exercise instructor,Lifeguard, Red Cross trainer. Could this be a weird virus? Feel slowed down, frustrated. Thanks for your help.