H.pylori igg is 0.94 u/ml. endoscopy showed gastritis in stomach. using ppi since 2 years. still pain in upper left abdomen. what is wrong with me?

Maybe lots of things: Anatomically, the left upper quadrant (luq) of abdomen includes: spleen, pancreatic tail, stomach, descending duodenum, splenic flexure of the colon, associated vessels. Don't forget the diaphragm, heart, and lower chest are pretty close by. The abdominal musculature, ribs, and skin can all contribute as well to localizing luq pain. An exam is appropriate for clarity of diagnosis ; treatment.