Hi 27 f iam not keeping well since Aug 2020. My temp is always ranging between 98.7 to 99.3 .I am having pain just at the back of chest area when I stretch or compress my body and in the morning also iam feeling all fever type symptoms.used all medications.done cbp crpthyroid serum creatinine serum uric acidlftlipidcalcium sodium pottassium vit b12 all are normal except vit d3 15 and esr 28 .taking vit d3 supplements.not understanding what may be the problem done eeg which is also normal.