Hi. I am 33 m in Doha, Qatar. Had sarcoidosis which went in to remission 5 months ago. Had a temporary dental filling inserted on Saturday. Sunday I developed fever- around 38.3. Took paracetamol 1000mg with the usual flu remedies- cough syrup, throat lozenges, orange juice. On Monday I was no better having also developed severe back stiffness and a congested cough. Replaced paracetamol with Lymsip. Last night fever was up and down- I would sweat and then fever would return. Today, Tuesday, was more of the same. Just stayed home from work after lunch and slept 4 hours- again, sweat fever off but still feeling pretty crappy. Do I need to do anything else or do I just give this time and keep fighting?