It seems that you are having Urinary Tract Infection
. So better you take antibiotics. As history is long so Urine culture is required. Its never rheumatoid artheritis because its crteria is diffrent and you are not having Morning Stiffness
After urine culture you should take Antibiotics according to senstivity. If you are already taking some antibiotics then Urine culture may be sterile. Sotake Broad Spectrum Antibiotics Like Third Generation Cephalosporins like tab Ceftum
500mg BD X 3 Days. And Tab Linzolid 600mg BD x 3 Days.