I am feeling feverish with  mild lower backache , nose congestion and slightly elevated temperature , 99 F in the afternoon for last 4-5 days. Morning and evening temperature is normal, below 98 F.  No change in condition, its not worsening. I had severe back  muscle cramp 12 days back  . Took pain killer and muscle relaxer , Mobizox for 5 days. Its fine now .No cough or breathing problem. SPO 2 normal. No contact with any outsider or suspect covid infected person. Had my Ist covid vaccine shot on Ist April. Feeling of unwell .Please advise.