I had constant severe nausea for a whole year!! Rheumatologist seemed stumped. (He tinkered with every medicine I was on looking for an allergic reaction...or something). Finally after I lost 80 lbs I insisted they hospitalize me and see what was causing it. Hospital and Rheumy played game of having the other figure it out. Finally Rhuemy adjusted my Prednisone dosage and instantly - no nausea! Had to adjust again, of course, or 80 lbs would have came back on way too quickly - ha-ha! Rhuemy finally conceeded that the nausea must be due to Lupus. It has been 7 months and I feel much better. Occasional moments of nausea; but taking it easy for a day seems to ward it off. If I absolutely cannot lay around and relax I take Phenergan (anti-nausea medication) and that helps...once it kicks in.
Hope This Helps!
Trudi (MI)