Jogger suffering from lupus. Work 40 hrs/weeksome saturdays can do nothing but sleep. Used to jog on sat but in flare x month. Rest or force activity?

Both. Your sporting activities should be ratcheted down. Use a heart rate monitor. But lupus activity does not usually. "flare" with regularity. It may be something else. Have your doctor check your ds-dna abs and complement levels to see if is truly a systemic lupus erythematosis flare.