Several days of worsening fatigue, joint pain, sweating, fever 100-101. joint pain improving but fever, fatigue and pain persist. ideas on possible dx?

Infection: These nonspecific symptoms can be from a viral infection which should run its course after several days or a bacterial infection which would require antibiotic treatment. No localizing symptoms such as respiratory,gastrointestinal, urinary or diagnostic rash at this time. Blood and urine cultures, at least, are now indicated after several days of fever. Discuss with your MD who will examine you.