What Causes Right-sided Pain On Back And Upper Abdomen Along With Fever?

My rite side in bck & upper abdomen hurt bad I'm running low grade fever all day but high fevers when I do get sleep I'm neauses but not getting sick I'm dizzy even without standing my bowls is a sickening sweet smell & over the last few mnths I've lost a lot of weight without changn my diet or exercise & I have a sluggish metabolism so weight loss is sumthn I gotta wrk hard at ...I'm disabled if I go to the dr every time sumthm wrong Id never leave the office but R theses symptoms sumthin I shldnt ignor & see a dr