Hi, my boyfriend has suddenly lost alot of weight 12-15pounds within this month, he is already small in nature, usually weighs in between 150-155lbs when healthy. His symptoms are lack of appetite, little jaundice in the white of his eyes, back pain and sometimes pain cramping near the liver, frequent night sweats, pale skin, feeling tired at times, low/no libido. He has seen a liver specialist to rule out any major diagnosis. Doctors have mentioned GS but he isnt fully diagnosed because of uncertainty. This is the third episode he has had within 2 years, and for each time, its after a certain period of time working nights that he gets all of these symptoms. Could there be a correlation with gs and working nights?