<s>[INST] Yesterday after a long day of teaching ballet and more physical work afterwards I noticed mottling in my legs--around the quads specifically.  I was super-tired, went to bed early, and slept for 12 hours. This is way more than usual. Have felt crummy all day today. Lethargy, pain in chest penetrating to upper back, and sore throat. Virus?  Something else?  I am a healthy 49-y-o athletic dancer/cyclist/swimmer. [/INST] HIThanks for posting your query.      Yes it seems like a Viral infection only . Most of the viral infections will take 2-3 days to subside but they will subside on their own.    My advise to you is hydrate yourself well, do salt water gargling , avoid non veg food . You can take Combiflam and rabeprezole for your chest pain.    But if the symptoms persists for more than 3 days then it would be better to consult your doctor. Hope this information was useful to you. Any clarifications feel free to ask . </s>