Upper right abdomen pain from 4 months.

October 2019 one night I had excess to drink and the next day I puked blood. Exactly 1 month from that day I started developing gastric pain and weakness. Blood tests and ultrasounds revealed that I have vitamin b12 deficiency and grade 1 fatty liver. Lft was normal and when checked in January lft was sgot/pt 38/67 rest was normal. When checked recently lft was sgot/pt 36/49 rest is normal. Ct scan was done showed diffuse fatty liver and gallbladder distended. Doctors said that my pain was muscular pain but I experience leg pain as well and I have trouble sleeping and feel tired easily. I am worried this is liver related issue because I have a history of alcohol use frequently but not in high quantity. Is there something the doctors have missed from my reports?  This has made my life miserable from 5 months. I have taken b12 injections in January (15 injections). I have also gained weight (was 78kg now 81kg). I have stopped alcohol use since 5 months.