Can I stretch muscles or get massage while sick?

Patient: Can I do the roller exercises when sick? I’m not sure what I have yet, but just got a roller since I’ve been having a lot of pain in muscles. I have had a fever the last few days with migraine & pain in sides which may have been caused by moving boxes on Sunday.

Symptoms: fever, migraine, pain in sides, muscle pain in neck, back, & legs, loss of appetite

Doctor: