What Causes Right Sided Abdominal Pain When Suffering From Fatty Liver?

i am 36yrs , 5.6 - 80kgs , i consume alcohol twice weekly and smoker . In recent 8 to 9 months my weight has been incredsed by about 9 kgs .Due to pain in abdomen on right side iwent for USG, impression was mild hepatomegaly with fatty changes .suggest me